{"id":"UBUNTU-CVE-2026-67324","details":"GitPython 3.1.50 fails to recognize joined short-option forms such as -u\u003cvalue\u003e (the short form of --upload-pack=\u003cvalue\u003e) when enforcing its default unsafe-option gate. When an application passes attacker-influenced clone options into Repo.clone_from(..., multi_options=..., allow_unsafe_options=False), an attacker can supply -u\u003chelper\u003e to bypass the gate that blocks --upload-pack/-u, causing Git to execute the specified helper command during clone. Fixed in 3.1.51.","modified":"2026-08-06T00:23:23Z","published":"2026-08-01T13:17:00Z","upstream":["CVE-2026-67324"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-67324"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-67324"},{"type":"REPORT","url":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-v396-v7q4-x2qj"},{"type":"REPORT","url":"https://www.vulncheck.com/advisories/gitpython-authentication-bypass-via-joined-short-options"}],"affected":[{"package":{"name":"python-git","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/python-git?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.3.2~RC1-2","0.3.2~RC1-3","0.3.2~RC1-3ubuntu0.1~esm1","0.3.2~RC1-3ubuntu0.1~esm2","0.3.2~RC1-3ubuntu0.1~esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"python-git","binary_version":"0.3.2~RC1-3ubuntu0.1~esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67324.json"}},{"package":{"name":"python-git","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.1+git137-gc8b8379-1","1.0.1+git137-gc8b8379-2","1.0.1+git137-gc8b8379-2.1","1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm1","1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm2","1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"python-git","binary_version":"1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm4"},{"binary_name":"python3-git","binary_version":"1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67324.json"}},{"package":{"name":"python-git","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.5-1","2.1.6-1","2.1.7-1","2.1.8-1","2.1.8-1ubuntu0.1~esm1","2.1.8-1ubuntu0.1~esm2","2.1.8-1ubuntu0.1~esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"2.1.8-1ubuntu0.1~esm4","binary_name":"python-git"},{"binary_name":"python3-git","binary_version":"2.1.8-1ubuntu0.1~esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67324.json"}},{"package":{"name":"python-git","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.11-1","3.0.4-1","3.0.5-1","3.0.7-1","3.0.7-1ubuntu0.1~esm1","3.0.7-1ubuntu0.1~esm2","3.0.7-1ubuntu0.1~esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-git","binary_version":"3.0.7-1ubuntu0.1~esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67324.json"}},{"package":{"name":"python-git","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.14-1","3.1.23-1","3.1.24-1","3.1.24-1ubuntu0.1~esm1","3.1.24-1ubuntu0.1~esm2","3.1.24-1ubuntu0.1~esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-git","binary_version":"3.1.24-1ubuntu0.1~esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67324.json"}},{"package":{"name":"python-git","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.30-1","3.1.37-1","3.1.37-3","3.1.37-3ubuntu0.1~esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-git","binary_version":"3.1.37-3ubuntu0.1~esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67324.json"}},{"package":{"name":"python-git","ecosystem":"Ubuntu:Pro:26.04:LTS","purl":"pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Fresolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.44-1","3.1.45-1","3.1.46-1","3.1.46-1ubuntu0.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"python3-git","binary_version":"3.1.46-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-67324.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}