CVE-2026-44983 — smallbitvec: Safe API Triggered Heap Buffer Overflow via Integer Overflow
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 un…
Published: 2026-05-26 · CVSS: 7.3 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7