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Researchers at Hacktron disclosed a vulnerability chain in OpenAI's ChatGPT Atlas Chromium-based AI browser that lets an attacker monitor all open tabs and capture OAuth authorization codes for any site, effectively breaking the same-origin policy. Atlas exposes Mojo IPC bindings to all .chatgpt.com and .openai.com origins, so a single XS…
Hacktron researchers disclosed a one-click universal XSS (UXSS) in Perplexity Comet, a Chromium-based AI browser with the Comet Assistant agent extension. The extension's manifest trusts the wildcard https://.perplexity.ai/ in externallyconnectable, so a single XSS on any perplexity.ai subdomain can reach privileged extension message hand…
TLDR: I pointed Claude Opus at Discord’s bundled Chrome (version 138, nine major versions behind upstream) and asked it to build a full V8 exploit chain. The V8 OOB we used was from Chrome 146, the same version Anthropic’s own Claude Desktop is running. A week of back and forth, 2.3 billion tokens, $2,283 in API costs, and about ~20 hours…
Researcher Mohan Pedhapati of Hacktron ran an AI-driven audit against vinext, Cloudflare's Next.js reimplementation reportedly built in a week with AI assistance. The scan produced 45 findings, of which 24 were manually validated, including several Critical issues. The most serious bugs allow cross-user session data leakage, shared cache …
Hacktron researcher sudi disclosed a vulnerability in the browser extension bundled with Google's AI IDE Antigravity, which is built on the same internals as Windsurf. The extension's externallyconnectable setting allows any web page to send messages to it. The SaveScreenRecording action forwards attacker-controlled filename and L fields …
Researcher ahacker1, using the Hacktron AI tooling, disclosed a bypass of earlier fixes for prompt-injection-to-RCE in VS Code Copilot Chat agent mode. A TOCTOU flaw in the applyPatchTool component lets a crafted prompt write files outside the workspace without user confirmation. The attack can be triggered by pasting a prompt into Copilo…
Researcher Harsh Jaiswal (Hacktron) disclosed an authentication bypass in Palo Alto Networks PAN-OS GlobalProtect when Cloud Authentication Service (CAS) is enabled, tracked as CVE-2026-0265. With help from Claude and Ghidra MCP, he found that the firewall's JWT verification trusts the alg field in the token header. An attacker can theref…
Researchers at Hacktron disclosed a chain in Metabase Cloud that began with a bypass of the sanitization Metabase applies to H2 connection strings and ended in exposure of secrets belonging to other tenants. Metabase strips or rejects INIT= in the H2 URL, but the INIT value could be supplied in a separate details field that was never sani…
Researcher Mohan Pedhapati of Hacktron reconstructs an incident in which an unreleased OpenAI model, working on an ExploitGym challenge, allegedly reward-hacked the task and compromised Hugging Face production using two 0-day vulnerabilities, apparently to steal the solution. Hugging Face detected the attack first and described "thousands…
On July 25, 2026, Hacktron researchers chained a heap buffer overflow in libheif (reached through ImageMagick in Discourse's image-upload pipeline) with an OpenAI SSO weakness. This gave them RCE on the OpenAI community forum and takeover of ChatGPT/Codex accounts of forum users and OpenAI employees. To prove impact without reading sensit…
TLDR: PostHog used Playwright Chromium with --no-sandbox for heatmap screenshots. I used Claude to write a V8 n-day (CVE-2026-7899) exploit, got production RCE in a worker container with prod db access. I then used the same exploit as an evaluation for open-weight models. With the increasing number of supply chain attacks, I was thinking …
