Double fdrop on a socket through sys_netcontrol on 01/05/2026
PlayStation disclosed a bug submitted by slidybat: https://hackerone.com/reports/3320669 - Bounty: $10000 [...]
InfoSec Planet
A collection of diverse security content from a curated list of sources. This website also serves as a demo for "worker-planet", the software that powers it.
Anti-DDoS Firm Heaped Attacks on Brazilian ISPs by BrianKrebs on 30/04/2026
A Brazilian tech firm that specializes in protecting networks from distributed denial-of-service (DDoS) attacks has been enabling a botnet responsible for an extended campaign of massive DDoS attacks against other network operators in Brazil, KrebsOnSecurity has learned. The firm’s chief executive says the malicious activity resulted from a security breach and was likely the work of a compet [...]
Fast16 Malware on 30/04/2026
Researchers have reverse-engineered a piece of malware named Fast16. It’s almost certainly state-sponsored, probably US in origin, and was deployed against Iran years before Stuxnet: “…the Fast16 malware was designed to carry out the most subtle form of sabotage ever seen in an in-the-wild malware tool: By automatically spreading across networks and then silently manipulating com [...]
Josh Mason | Real Folks of Cyber | DITL on 30/04/2026
Exploiting SQL injection vulnerabilities by Ayoub on 30/04/2026
Most assume that SQL injection is a solved problem in today's application landscape, especially with increased awareness of secure coding practices (such as resorting to prepared statements or parameterized queries) and the widespread adoption of NoSQL databases. However, in practice, SQLi vulnerabilities continue to surface in modern applications, often hiding in legacy code components, custom qu [...]
MQTT state machine confusion: PINGRESP/DISCONNECT with non-zero remaining_length dispatches to stale nextstate on 29/04/2026
curl disclosed a bug submitted by fxv_ray_st: https://hackerone.com/reports/3702718 [...]
Extending Ruzzy with LibAFL on 29/04/2026
LibAFL is all the rage in the fuzzing community these days, especially with LLVM’s libFuzzer being placed in maintenance mode. Written in Rust, LibAFL claims improved performance, modularity, state-of-the-art fuzzing techniques, and libFuzzer compatibility. For these reasons, I set out to add LibAFL support to Ruzzy, our coverage-guided fuzzer for pure Ruby code and Ruby C extensions. This gives R [...]
Claude Mythos Has Found 271 Zero-Days in Firefox on 29/04/2026
That’s a lot. No, it’s an extraordinary number: Since February, the Firefox team has been working around the clock using frontier AI models to find and fix latent security vulnerabilities in the browser. We wrote previously about our collaboration with Anthropic to scan Firefox with Opus 4.6, which led to fixes for 22 security-sensitive bugs in Firefox 148. As part of our continued col [...]
Use-After-Free in SMB connection reuse (req->path dangling pointer after needle destruction) on 29/04/2026
curl disclosed a bug submitted by nadsec42: https://hackerone.com/reports/3591956 [...]
Negotiate connection reuse with wrong credentials when using CURLAUTH_ANY on 29/04/2026
curl disclosed a bug submitted by anonymous_237: https://hackerone.com/reports/3646072 [...]
Negotiate Authentication Premature on Connection Reuse on 29/04/2026
curl disclosed a bug submitted by sdainard: https://hackerone.com/reports/3666576 [...]
CVE-2026-7168: cross-proxy Digest auth state leak on 29/04/2026
curl disclosed a bug submitted by xkilua: https://hackerone.com/reports/3697719 [...]
CVE-2026-7009: OCSP stapling bypass with Apple SecTrust on 29/04/2026
curl disclosed a bug submitted by 3lcarry: https://hackerone.com/reports/3694390 [...]
CVE-2026-6253: proxy credentials leak over redirect-to proxy on 29/04/2026
curl disclosed a bug submitted by joesephdiver: https://hackerone.com/reports/3669637 [...]
CVE-2026-5545: wrong reuse of HTTP Negotiate connection on 29/04/2026
curl disclosed a bug submitted by quaccws: https://hackerone.com/reports/3642555 [...]
CVE-2026-6276: stale custom cookie host causes cookie leak on 29/04/2026
curl disclosed a bug submitted by arkss: https://hackerone.com/reports/3671818 [...]
CVE-2026-6429: netrc credential leak with reused proxy connection on 29/04/2026
curl disclosed a bug submitted by nobcoderr: https://hackerone.com/reports/3677759 [...]
CVE-2026-4873: connection reuse ignores TLS requirement on 29/04/2026
curl disclosed a bug submitted by bonaire: https://hackerone.com/reports/3621851 [...]
CVE-2026-5773: wrong reuse of SMB connection on 29/04/2026
curl disclosed a bug submitted by osama-hamad: https://hackerone.com/reports/3650689 [...]
Use-after-free in `curl_easy_ssls_export()` during callback re-entrancy on 29/04/2026
curl disclosed a bug submitted by m1llie: https://hackerone.com/reports/3682666 [...]
Heap-buffer-overflow in `Curl_ssl_push_certinfo_len()` sole bounds check is `DEBUGASSERT` on 29/04/2026
curl disclosed a bug submitted by h3zh3z: https://hackerone.com/reports/3684614 [...]
Stack exhaustion in MIME multipart reading with deeply nested subparts on 29/04/2026
curl disclosed a bug submitted by wi110w: https://hackerone.com/reports/3684603 [...]
PS4 BD-J privilege escalation using nested JAR on 29/04/2026
PlayStation disclosed a bug submitted by gezine: https://hackerone.com/reports/3452696 - Bounty: $2500 [...]
What Anthropic’s Mythos Means for the Future of Cybersecurity on 28/04/2026
Two weeks ago, Anthropic announced that its new model, Claude Mythos Preview, can autonomously find and weaponize software vulnerabilities, turning them into working exploits without expert guidance. These were vulnerabilities in key software like operating systems and internet infrastructure that thousands of software developers working on those systems failed to find. This capability will have m [...]
6 Lessons Security Leaders Must Learn About AI and APIs by Tim Erlin on 28/04/2026
Most organizations treating AI security as a model problem are defending the wrong layer. Security teams filter prompts, patch jailbreaks, and tune model behavior, which is all necessary work, while the actual attack surface sits largely unexamined underneath. That surface is the API layer: the endpoints AI systems use to retrieve data, call tools, and take action on behalf of users. This isn' [...]
PortSwigger recognized at the Northern Tech Awards 2026. on 28/04/2026
We’re proud to announce that PortSwigger recently won the Overall Judges’ Award at the Northern Tech Awards 2026. The Northern Tech Awards are run by GP Bullhound, the tech advisory and investment fir [...]
IBM Aspera HTTP Gateway stores sensitive information in clear text in easily obtainable files which can be read by an unauthenticated user. on 27/04/2026
IBM disclosed a bug submitted by jhon1231248e: https://hackerone.com/reports/3340797 [...]
This hacker made $40,000 using Claude #ai #hacking #bugbounty on 27/04/2026
My Friend Made $40,000 Using Claude Code (Here's How) on 27/04/2026
Medieval Encrypted Letter Decoded on 27/04/2026
Sent by a Spanish diplomat. Apparently people have been working on it since it was rediscovered in 1860. [...]
Bypass of Restricted Keyword "Mozilla" in Display Name Field via Unicode Homoglyphs on addons.allizom.org on 27/04/2026
Mozilla disclosed a bug submitted by icecream_23: https://hackerone.com/reports/3279441 - Bounty: $500 [...]
Bypassing Inbox Privacy Settings and Enabling Spam on Pixiv.net on 27/04/2026
pixiv disclosed a bug submitted by aaqibhussain: https://hackerone.com/reports/3100570 - Bounty: $200 [...]
Non-premium user can disable Ads in japanese version of dic.pixiv.net on 27/04/2026
pixiv disclosed a bug submitted by lainkusanagi: https://hackerone.com/reports/3183520 - Bounty: $3000 [...]
Argument Injection in /manage/ssh/ via host parameter leads to sensitive file disclosure on Weblate on 26/04/2026
Weblate disclosed a bug submitted by alexb_616: https://hackerone.com/reports/3518571 [...]
mruby-engine: UAF in MRubyEngine#initialize enables local RCE on 24/04/2026
Shopify disclosed a bug submitted by 0xd0ff9: https://hackerone.com/reports/3679660 [...]
Friday Squid Blogging: How Squid Survived Extinction Events on 24/04/2026
Science news: Scientists have finally cracked a long-standing mystery about squid and cuttlefish evolution by analyzing newly sequenced genomes alongside global datasets. The research reveals that these bizarre, intelligent creatures likely originated deep in the ocean over 100 million years ago, surviving mass extinction events by retreating into oxygen-rich deep-sea refuges. For millions of year [...]
Hiding Bluetooth Trackers in Mail on 24/04/2026
It was used to track a Dutch naval ship: Dutch journalist Just Vervaart, working for regional media network Omroep Gelderland, followed the directions posted on the Dutch government website and mailed a postcard with a hidden tracker inside. Because of this, they were able to track the ship for about a day, watching it sail from Heraklion, Crete, before it turned towards Cyprus. While it only show [...]
The Governance Gap: How the EU AI Act Makes API Security a Compliance Imperative by Julian Richter on 24/04/2026
Your legal team just handed you a 400-page document and said "figure out compliance." The EU AI Act is live, your organization falls under its scope, which is broader than many expect. Even non‑EU companies must comply if their AI systems are used, deployed, or produce effects within the European Union. In practice, that means that global organizations building or integrating AI models cannot tre [...]
Intigriti Bug Bytes #235 - April 2026 🚀 by Ayoub on 24/04/2026
Hi hackers, Welcome to the latest edition of Bug Bytes! In this month's issue, we'll be featuring: Compromising an NPM package with 40M weekly downloads Bypassing Cloudflare WAF for a full ATO 20-part series on exploiting JWT vulnerabilities First Intigriti Bug Bounty Meetup And so much more! Let's dive in! Common misconceptions about bug bounty, debugged Bug bounty still gets misundersto [...]
Incomplete fix for CVE-2026-21637: loadSNI() in _tls_wrap.js lacks try/catch leading to Remote DoS on 23/04/2026
Node.js disclosed a bug submitted by mbarbs: https://hackerone.com/reports/3556769 [...]
AI threats in the wild: The current state of prompt injections on the web on 23/04/2026
Posted by Thomas Brunner, Yu-Han Liu, Moni PandeAt Google, our Threat Intelligence teams are dedicated to staying ahead of real-world adversarial activity, proactively monitoring emerging threats before they can impact users. Right now, Indirect Prompt Injection (IPI) is a top priority for the security community, anticipating it as a primary attack vector for adversaries to target and compromise A [...]
Trailmark turns code into graphs on 23/04/2026
We’re open-sourcing Trailmark, a library that parses source code into a queryable call graph of functions, classes, call relationships, and semantic metadata, then exposes that graph through a Python API that Claude skills can call directly. Install it now: uv pip install trailmark “Defenders think in lists. Attackers think in graphs. As long as this is true, attackers win.” John [...]
FBI Extracts Deleted Signal Messages from iPhone Notification Database on 23/04/2026
404 Media reports (alternate site): The FBI was able to forensically extract copies of incoming Signal messages from a defendant’s iPhone, even after the app was deleted, because copies of the content were saved in the device’s push notification database…. The news shows how forensic extraction—when someone has physical access to a device and is able to run specialized software on it& [...]
RBAC bypass on App log endpoints via `permissionRequired` typo any authenticated user reads admin-only Enterprise App logs on 23/04/2026
Rocket.Chat disclosed a bug submitted by arccode: https://hackerone.com/reports/3589551 [...]
Vulnpocalypse Now? How AI is changing vulnerability discovery by Ed Parsons on 23/04/2026
What you will learn How vulnerability research and security testing may evolve in the future, based on expert insights and reflections from Intigriti COO Ed Parsons. How AI is reshaping vulnerability discovery, including the major trends and developments security teams should understand today. The ‘vulnpocalypse’, and what it signals about the future of AI-assisted hacking. The risks, oppor [...]
Attacking the MCP Trust Boundary by Chandler Johnson on 22/04/2026
Every secure API draws a line between code and data. HTTP separates headers from bodies. SQL has prepared statements. Even email distinguishes the envelope from the message. The Model Context Protocol (MCP), the fast-growing standard for connecting AI agents to external services, inherits that gap from the models it sits on top of. Its central premise is that a language model reads tool descripti [...]
ICE Uses Graphite Spyware on 22/04/2026
ICE has admitted that it uses spyware from the Israeli company Graphite. [...]
Complete authentication bypass to admin permissions on 22/04/2026
Rocket.Chat disclosed a bug submitted by npc: https://hackerone.com/reports/3564655 [...]
Use BLUR-IT to Increase Your OPSEC on 21/04/2026
‘Scattered Spider’ Member ‘Tylerb’ Pleads Guilty by BrianKrebs on 21/04/2026
A 24-year-old British national and senior member of the cybercrime group “Scattered Spider” has pleaded guilty to wire fraud conspiracy and aggravated identity theft. Tyler Robert Buchanan admitted his role in a series of text-message phishing attacks in the summer of 2022 that allowed the group to hack into at least a dozen major technology companies and steal tens of millions of doll [...]
Why API Discovery Is the First Step to Securing AI by Tim Erlin on 21/04/2026
TL;DR AI risk doesn’t live in the model. It lives in the APIs behind it. Every AI interaction triggers a chain of API calls across your environment. Many of those APIs aren’t documented or tracked. That’s your real exposure. Shadow API discovery gives you visibility into those hidden endpoints, so you can find them before attackers do. If you don’t know which APIs your AI relies on, you can [...]
Mexican Surveillance Company on 21/04/2026
Grupo Seguritech is a Mexican surveillance company that is expanding into the US. [...]
SVG filter primitives bypass remote image blocking, enabling email tracking without consent. on 20/04/2026
Nextcloud disclosed a bug submitted by nullcathedral: https://hackerone.com/reports/3486747 [...]
I Learned How to Jailbreak AI Chatbots on 20/04/2026
position: fixed !important bypasses CSS sanitizer's fixed-position mitigation, enabling full-viewport phishing overlays. on 20/04/2026
Nextcloud disclosed a bug submitted by nullcathedral: https://hackerone.com/reports/3590586 [...]
Unquoted body background attribute enables CSS injection that bypasses remote image blocking on 20/04/2026
Nextcloud disclosed a bug submitted by nullcathedral: https://hackerone.com/reports/3590583 [...]
SMIL values and by attributes bypass remote image blocking via unvalidated resource-loading animations, enabling email tracking without consent on 20/04/2026
Nextcloud disclosed a bug submitted by nullcathedral: https://hackerone.com/reports/3590576 [...]
Is “Satoshi Nakamoto” Really Adam Back? on 20/04/2026
The New York Times has a long article where the author lays out an impressive array of circumstantial evidence that the inventor of Bitcoin is the cypherpunk Adam Back. I don’t know. The article is convincing, but it’s written to be convincing. I can’t remember if I ever met Adam. I was a member of the Cypherpunks mailing list for a while, but I was never really an active partici [...]
libcurl omits IPv6 zoneid from host identity and leaks credentials/cookies across scoped link-local realms on 19/04/2026
curl disclosed a bug submitted by valvelvel: https://hackerone.com/reports/3680680 [...]
Digest Auth State Leak on Cross-Origin Redirect via Netrc - Username and Password Hash Sent to Wrong Host on 19/04/2026
curl disclosed a bug submitted by fg0x0: https://hackerone.com/reports/3680038 [...]
Stored XSS in attachment-display exploitable through SameSite on 19/04/2026
Nextcloud disclosed a bug submitted by aikido_security: https://hackerone.com/reports/3594137 [...]
libcurl reuses a learned RTSP Session header across different hosts on the same easy handle, enabling cross-host session leak and replay on 18/04/2026
curl disclosed a bug submitted by skksndk: https://hackerone.com/reports/3680234 [...]
Rails::HTML::Sanitizer.allowed_uri? returns true for entity-encoded control-character-split javascript: URLs on 18/04/2026
Ruby on Rails disclosed a bug submitted by smlee: https://hackerone.com/reports/3601655 [...]
libcurl stale CURLOPT_AUTOREFERER leaks a previous request URL to a different origin on a reused easy handle on 17/04/2026
curl disclosed a bug submitted by asdwe: https://hackerone.com/reports/3673277 [...]
How to Investigate with Windows Prefetch Files on 17/04/2026
We beat Google’s zero-knowledge proof of quantum cryptanalysis on 17/04/2026
Two weeks ago, Google’s Quantum AI group published a zero-knowledge proof of a quantum circuit so optimized, they concluded that first-generation quantum computers will break elliptic curve cryptography keys in as little as 9 minutes. Today, Trail of Bits is publishing our own zero-knowledge proof that significantly improves Google’s on all metrics. Our result is not due to some quantum breakthrou [...]
Common AI misconceptions debugged! by Greg Jenkins on 17/04/2026
What you will learn How AI is boosting researcher productivity How new researchers are approaching bug bounties Why the quality of submissions is not declining How effective triage and coordination are crucial AI and the growing ecosystem of tools built around it have now moved beyond early experimentation and into everyday use across the bug bounty community. What initially showed up as AI- [...]
Introducing the official Burp Ambassador Program on 16/04/2026
Why we’re launching the program What it means to be a Burp Ambassador What we’re aiming for Our Burp Ambassadors Alan Levy Corey Ball Federico Dotta Rana Khalil Tib3rius Looking ahead Get Involved - B [...]
Here’s everything I have learned from making $2M in bounties. #bugbounty on 16/04/2026
Residual Malicious Payloads on HackerOne after Vulnerability Fixes on 16/04/2026
HackerOne disclosed a bug submitted by joejoe5: https://hackerone.com/reports/3168691 [...]
DOS via Mutation Aliasing in GraphQL Account Recovery Phone Number Verification API on 16/04/2026
HackerOne disclosed a bug submitted by hellokbit: https://hackerone.com/reports/3287208 - Bounty: $12500 [...]
lib/http2.c: SSL connections accept non-HTTP push schemes (incomplete fix for 2e8c922a) on 16/04/2026
curl disclosed a bug submitted by hybirdss: https://hackerone.com/reports/3674275 [...]
The case for dependency cooldowns in a post-axios world on 16/04/2026
Understanding npm and the importance of dependency cooldowns. [...]
Authorization header leak in ssrf_filter via cross-host redirect leads to credential theft and unauthorized access on 15/04/2026
arkadiyt-projects disclosed a bug submitted by argareksapatii: https://hackerone.com/reports/3642600 [...]
SQL Injection Detection Bypass in AWS WAF Managed Rules (AWSManagedRulesSQLiRuleSet) on 15/04/2026
AWS VDP disclosed a bug submitted by killnet-edc: https://hackerone.com/reports/3591725 [...]
Patch Tuesday, April 2026 Edition by BrianKrebs on 14/04/2026
Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server zero-day and a publicly disclosed weakness in Windows Defender dubbed “BlueHammer.” Separately, Google Chrome fixed its fourth zero-day of 2026, and an emergency update for Adobe Reader nixes an actively exploited [...]
DOM XSS in `fizzy.do` import filename preview enables one-click victim account takeover on 14/04/2026
Basecamp disclosed a bug submitted by xavlimsg: https://hackerone.com/reports/3608199 - Bounty: $500 [...]
Improper Access Control in `fizzy.do` import flow allows cross-tenant ActionText reference resolution and data disclosure on 14/04/2026
Basecamp disclosed a bug submitted by xavlimsg: https://hackerone.com/reports/3543475 - Bounty: $218 [...]
BOLA/IDOR in Out-of-Office API allows any authenticated user to read other users' absence data on 14/04/2026
Nextcloud disclosed a bug submitted by cyberjoker: https://hackerone.com/reports/3382343 [...]
Cybersecurity Books to Read: DFIR Investigative Mindset on 14/04/2026
[Variation of #3321406] YetAnother 1-Click Chaining of Self-XSS, Cookie Tossing and AntiCSRF Token Prediction leads to auto approval in AccessTempAuth on 14/04/2026
Cloudflare Public Bug Bounty disclosed a bug submitted by matured_kazama: https://hackerone.com/reports/3423950 [...]
[Variation of #1554049] 1-Click Chaining of Self-XSS, Cookie Tossing and AntiCSRF Token Prediction leads to auto approval in Access Temp Auth on 14/04/2026
Cloudflare Public Bug Bounty disclosed a bug submitted by matured_kazama: https://hackerone.com/reports/3321406 [...]
Brave Shields Domain Reordering Leads to Origin Confusion on 13/04/2026
Brave Software disclosed a bug submitted by mousepadkalilinux12: https://hackerone.com/reports/3665151 - Bounty: $100 [...]
Credential Disclosure via Unvalidated directDownloadUrl (Missing DontAddCredentialsAttribute) on 13/04/2026
Nextcloud disclosed a bug submitted by py0zz1: https://hackerone.com/reports/3400143 - Bounty: $250 [...]
Is AI Killing Bug Bounty? on 13/04/2026
Argument Injection via curl Short-Flag Grouping on 13/04/2026
curl disclosed a bug submitted by midoussa7: https://hackerone.com/reports/3669305 [...]
Integer Overflow/Signedness Mismatch in Printf Precision for HTTP/2 Trailer Headers on 11/04/2026
curl disclosed a bug submitted by pwnpwn: https://hackerone.com/reports/3665363 [...]
Encryption context keys and values logged at INFO level on 10/04/2026
AWS VDP disclosed a bug submitted by misop00p: https://hackerone.com/reports/3620760 [...]
Bringing Rust to the Pixel Baseband on 10/04/2026
Posted by Jiacheng Lu, Software Engineer, Google Pixel Team Google is continuously advancing the security of Pixel devices. We have been focusing on hardening the cellular baseband modem against exploitation. Recognizing the risks associated within the complex modem firmware, Pixel 9 shipped with mitigations against a range of memory-safety vulnerabilities. For Pixel 10, Google is advancing its p [...]
Open Redirect in Rocket.Chat on 10/04/2026
Rocket.Chat disclosed a bug submitted by soohyun: https://hackerone.com/reports/3418031 [...]
[Vertical Privilege Escalation] User can Unapproved any Approved Translation at [/translations/unapprove/] on 10/04/2026
Mozilla disclosed a bug submitted by adilnbabras: https://hackerone.com/reports/3020021 [...]
User Can Delete Other Users' Personal Access Tokens at /delete-token/{token_id}/ on Mozilla Pontoon on 10/04/2026
Mozilla disclosed a bug submitted by adilnbabras: https://hackerone.com/reports/3325582 [...]
A(I) future of Bug Bounty by Chris Holt on 10/04/2026
What you will learn How AI is changing bug bounty Where AI helps security teams Why human hackers matter What the future of bug bounty looks like AI and all the tools built around related technologies have been working their way into the Bug Bounty community for a little over a year now and by around March 2025 we started seeing notably AI-written reports. It is time to take stock of what imp [...]
Protecting Cookies with Device Bound Session Credentials on 09/04/2026
Posted by Ben Ackerman, Chrome team, Daniel Rubery, Chrome team and Guillaume Ehinger, Google Account Security team Following our April 2024 announcement, Device Bound Session Credentials (DBSC) is now entering public availability for Windows users on Chrome 146, and expanding to macOS in an upcoming Chrome release. This project represents a significant step forward in our ongoing efforts to co [...]
Memory leak in gem decode logic can allow attacker to take down Rubygems.org application on 09/04/2026
RubyGems disclosed a bug submitted by mclaren650sspider: https://hackerone.com/reports/3079931 [...]
Master C and C++ with our new Testing Handbook chapter on 09/04/2026
We added a new chapter to our Testing Handbook: a comprehensive security checklist for C and C++ code. We’ve identified a broad range of common bug classes, known footguns, and API gotchas across C and C++ codebases and organized them into sections covering Linux, Windows, and seccomp. Whereas other handbook chapters focus on static and dynamic analysis, this chapter offers a strong basis for manu [...]
libcurl: Integer truncation in curl_easy_ssls_import() causes TLS sessions to never expire on 09/04/2026
curl disclosed a bug submitted by adityasunny_06: https://hackerone.com/reports/3658049 [...]
Bye Bye Bellini! | Andrew Bellini's Farewell Stream | Cybersecurity | AMA on 09/04/2026
Unpatchable Vulnerabilities of Kubernetes: CVE-2020-8562 on 09/04/2026
A look at how Kubernetes CVE-2020-8562 allows attackers to bypass API server proxy protections using DNS rebinding [...]
wasResumeUsed on /api-internal/api.htm endpoint leaking other user's resume usage status on 08/04/2026
Glassdoor disclosed a bug submitted by auxilus: https://hackerone.com/reports/909084 [...]