{"id":"UBUNTU-CVE-2026-109351","details":"Gitoxide gix-pack before 0.75.0 contains an uncontrolled memory allocation vulnerability that allows remote attackers to abort the process by supplying a huge pack-header object count. Malicious remotes can serve a 12-byte pack header claiming 0xFFFFFFFF objects, forcing Tree::with_capacity to reserve hundreds of gigabytes and crash clone or fetch operations.","modified":"2026-10-17T12:59:49.429047230Z","published":"2026-10-12T17:17:00Z","upstream":["CVE-2026-109351"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-109351"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-109351"},{"type":"REPORT","url":"https://github.com/GitoxideLabs/gitoxide/security/advisories/GHSA-x862-c2wj-4mwr"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/gitoxide-gix-pack-before-0.75.0-denial-of-service-via-pack-header-object-count"}],"affected":[{"package":{"name":"rust-gix","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/rust-gix?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.73.0-1","0.83.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"librust-gix-dev","binary_version":"0.83.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109351.json"}},{"package":{"name":"rust-gix","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/rust-gix?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.69.1-1","0.69.1-2","0.73.0-1","0.73.0-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"librust-gix-dev","binary_version":"0.73.0-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-109351.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}