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Chromium publishes fixed exploit 4 years later, turns out it's actually unfixed

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Chromium exploit unfixed after 4 years, significant security news

2026-05-21 security Lobsters
Chromium publishes fixed exploit 4 years later, turns out it's actually unfixed
Summary

This article likely reports a security incident where the Chromium project published a fix for an exploit four years after its discovery, only to later discover that the fix was ineffective and the exploit remains unpatched. This highlights a significant failure in the vulnerability management process.

Key Takeaway

Verify the actual patch status of any Chromium security advisory before assuming it is resolved, and consider additional runtime protections like site isolation or content security policies.

Why it matters

For a platform engineer relying on Chromium-based browsers or embedded web views, this means a known exploit may still be present in your stack, requiring immediate manual verification and alternative mitigation strategies.

Full Article

Attached: 1 video back in 2022 i found a bug that would let me, with no user interaction, turn any chromium-based browser into a permanent js botnet member in edge, you wouldn't even notice anything out-of-place, and would stay connected to the c2 even after closing the browser today, almost 4 years later, the bug is finally public: https://issues.chromium.org/issues/40062121