VDB
CVE-2026-6654
CVE-2026-6654
PUBLISHED
CVSS 9.300000190734863 CRITICAL
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.
EPSS 0.02% · 6.4th percentile
Risk Scores
CVSS v4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS Score
0.02%
6.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | thin-vec | 0.2.16 |
Timeline
- Apr 14, 2026 CVE Published
- Apr 20, 2026 EPSS Score
- Apr 20, 2026 PoC Published
- Apr 21, 2026 Security Advisory
- Apr 27, 2026 CVE Updated
- May 18, 2026 EPSS Score
- May 19, 2026 EPSS Score
- May 20, 2026 EPSS Score
- May 21, 2026 EPSS Score
- May 22, 2026 EPSS Score
- May 23, 2026 EPSS Score
- May 24, 2026 EPSS Score