CVE-2026-6654
Use-After-Free and Double-Free in IntoIter::drop when element drop panics
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 5.1EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
20 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
Double-Free / Use-After-Free (UAF) in the `IntoIter::drop` and `ThinVec::clear` functions in the thin_vec crate. A panic in `ptr::drop_in_place` skips setting the length to zero.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
Mozilla · thin-vecWant to know if your infrastructure is exposed to this?
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