{"id":"DEBIAN-CVE-2026-44983","details":"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.","modified":"2026-09-14T17:03:13.728963987Z","published":"2026-05-26T22:16:43.440Z","upstream":["CVE-2026-44983"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-44983"}],"affected":[{"package":{"name":"rust-smallbitvec","ecosystem":"Debian:12","purl":"pkg:deb/debian/rust-smallbitvec?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.1-1","2.6.0-1","2.6.1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44983.json"}},{"package":{"name":"rust-smallbitvec","ecosystem":"Debian:13","purl":"pkg:deb/debian/rust-smallbitvec?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.1-1","2.6.0-1","2.6.1-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44983.json"}},{"package":{"name":"rust-smallbitvec","ecosystem":"Debian:14","purl":"pkg:deb/debian/rust-smallbitvec?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.1-1"}]}],"versions":["2.5.1-1","2.6.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44983.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H"}]}