CVE-2026-44983
HIGH 7.3EPSS 0.2%
smallbitvec is a growable bit-vector for Rust, optimized for size. From 1.0.1 to 2.6.0, an integer overflow in the internal capacity calculation of smallbitvec can lead to an undersized heap allocation, resulting in a heap buffer overflow through safe APIs only. This allows memory corruption without requiring unsafe code from the caller. This vulnerability is fixed in 2.6.1.
- CVSS v3.1
- 7.3 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H - CVSS v3.1
- 7.3 HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H - EPSS
- 0.15% chance of exploitation in the next 30 days, 5th percentile
- Published
- 2026-05-26
- Updated
- 2026-05-27