Heap-based Buffer Overflow Affecting rust-smallbitvec package, versions <2.6.1-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN14-RUSTSMALLBITVEC-17099296
- published30 May 2026
- disclosed26 May 2026
Introduced: 26 May 2026
CVE-2026-44983 (opens in a new tab)How to fix?
Upgrade Debian:14 rust-smallbitvec to version 2.6.1-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream rust-smallbitvec package and not the rust-smallbitvec package as distributed by Debian.
See How to fix? for Debian:14 relevant fixed versions and status.
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.