High severity7.3GHSA Advisory· Published May 26, 2026· Updated Jun 1, 2026
CVE-2026-44983
CVE-2026-44983
Description
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
smallbitveccrates.io | >= 1.0.1, <= 2.6.0 | — |
Affected products
2- Range: >= 1.0.1, <= 2.6.0
Patches
Vulnerability mechanics
References
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