High
python-git — security advisory
GitPython before 3.1.54 contains an incomplete denylist in unsafe_git_clone_options that omits --template, allowing attackers to achieve arbitrary command execution during clone operations. Attackers can supply --template pointing to a directory containing malicious post-checkout hooks that execute when git clones the repository.
- Products
- python-git
- Affected 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, 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, 2.1.11-1, 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, 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, 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, 3.1.30-1, 3.1.37-1, 3.1.37-3, 3.1.37-3ubuntu0.1~esm2, 3.1.44-1, 3.1.45-1, 3.1.46-1, 3.1.46-1ubuntu0.1~esm1, 3.1.50-1, 3.1.61-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-73623
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:16 UTC · Revision 1
Source evidence
GitPython before 3.1.54 contains an incomplete denylist in unsafe_git_clone_options that omits --template, allowing attackers to achieve arbitrary command execution during clone operations. Attackers can supply --template pointing to a directory containing malicious post-checkout hooks that execute when git clones the repository.
osv:UBUNTU-CVE-2026-73623
python-git
Fixed versions: Not specified
python-git
Fixed versions: Not specified
python-git
Fixed versions: Not specified
python-git
Fixed versions: Not specified
python-git
Fixed versions: Not specified
python-git
Fixed versions: Not specified
python-git
Fixed versions: Not specified
python-git
Fixed versions: Not specified
Complete source record
{
"id": "d3ac1f12f5bee4ef477d0807275c5f4d5f568ec8fb23d98707249fe02551fb25",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-73623",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-73623",
"summary": "GitPython before 3.1.54 contains an incomplete denylist in unsafe_git_clone_options that omits --template, allowing attackers to achieve arbitrary command execution during clone operations. Attackers can supply --template pointing to a directory containing malicious post-checkout hooks that execute when git clones the repository.",
"evidence": "osv:UBUNTU-CVE-2026-73623",
"products": [
{
"name": {
"value": "python-git",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.3.2~RC1-2",
"evidence": "/affected/0/versions"
},
{
"value": "0.3.2~RC1-3",
"evidence": "/affected/0/versions"
},
{
"value": "0.3.2~RC1-3ubuntu0.1~esm1",
"evidence": "/affected/0/versions"
},
{
"value": "0.3.2~RC1-3ubuntu0.1~esm2",
"evidence": "/affected/0/versions"
},
{
"value": "0.3.2~RC1-3ubuntu0.1~esm3",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "python-git",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.0.1+git137-gc8b8379-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.1+git137-gc8b8379-2",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.1+git137-gc8b8379-2.1",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm1",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm2",
"evidence": "/affected/1/versions"
},
{
"value": "1.0.1+git137-gc8b8379-2.1ubuntu0.1~esm4",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "python-git",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.5-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.1.6-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.1.7-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.1.8-1",
"evidence": "/affected/2/versions"
},
{
"value": "2.1.8-1ubuntu0.1~esm1",
"evidence": "/affected/2/versions"
},
{
"value": "2.1.8-1ubuntu0.1~esm2",
"evidence": "/affected/2/versions"
},
{
"value": "2.1.8-1ubuntu0.1~esm4",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "python-git",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.1.11-1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.4-1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.5-1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.7-1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.7-1ubuntu0.1~esm1",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.7-1ubuntu0.1~esm2",
"evidence": "/affected/3/versions"
},
{
"value": "3.0.7-1ubuntu0.1~esm4",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "python-git",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.14-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.1.23-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.1.24-1",
"evidence": "/affected/4/versions"
},
{
"value": "3.1.24-1ubuntu0.1~esm1",
"evidence": "/affected/4/versions"
},
{
"value": "3.1.24-1ubuntu0.1~esm2",
"evidence": "/affected/4/versions"
},
{
"value": "3.1.24-1ubuntu0.1~esm3",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "python-git",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.30-1",
"evidence": "/affected/5/versions"
},
{
"value": "3.1.37-1",
"evidence": "/affected/5/versions"
},
{
"value": "3.1.37-3",
"evidence": "/affected/5/versions"
},
{
"value": "3.1.37-3ubuntu0.1~esm2",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "python-git",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.46-1",
"evidence": "/affected/6/versions"
},
{
"value": "3.1.50-1",
"evidence": "/affected/6/versions"
},
{
"value": "3.1.61-1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "python-git",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "3.1.44-1",
"evidence": "/affected/7/versions"
},
{
"value": "3.1.45-1",
"evidence": "/affected/7/versions"
},
{
"value": "3.1.46-1",
"evidence": "/affected/7/versions"
},
{
"value": "3.1.46-1ubuntu0.1~esm1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "UBUNTU-CVE-2026-73623",
"aliases": [
"UBUNTU-CVE-2026-73623"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/ubuntu/python-git?arch=source&distro=esm-infra-legacy%2Ftrusty",
"ecosystem": "Ubuntu:Pro:14.04:LTS"
},
"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"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73623.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-git",
"binary_version": "0.3.2~RC1-3ubuntu0.1~esm3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps-legacy%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"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"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73623.json"
},
"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"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Fbionic",
"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"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"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73623.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python-git",
"binary_version": "2.1.8-1ubuntu0.1~esm4"
},
{
"binary_name": "python3-git",
"binary_version": "2.1.8-1ubuntu0.1~esm4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Ffocal",
"ecosystem": "Ubuntu:Pro:20.04:LTS"
},
"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"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73623.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-git",
"binary_version": "3.0.7-1ubuntu0.1~esm4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Fjammy",
"ecosystem": "Ubuntu:Pro:22.04:LTS"
},
"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"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73623.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-git",
"binary_version": "3.1.24-1ubuntu0.1~esm3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Fnoble",
"ecosystem": "Ubuntu:Pro:24.04:LTS"
},
"versions": [
"3.1.30-1",
"3.1.37-1",
"3.1.37-3",
"3.1.37-3ubuntu0.1~esm2"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73623.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-git",
"binary_version": "3.1.37-3ubuntu0.1~esm2"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/ubuntu/python-git?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"3.1.46-1",
"3.1.50-1",
"3.1.61-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73623.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-git",
"binary_version": "3.1.61-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "python-git",
"purl": "pkg:deb/ubuntu/python-git?arch=source&distro=esm-apps%2Fresolute",
"ecosystem": "Ubuntu:Pro:26.04:LTS"
},
"versions": [
"3.1.44-1",
"3.1.45-1",
"3.1.46-1",
"3.1.46-1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-73623.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "python3-git",
"binary_version": "3.1.46-1ubuntu0.1~esm1"
}
]
}
}
],
"modified": "2026-10-17T13:01:04.260726720Z",
"provider": "osv",
"upstream": [
"CVE-2026-73623"
],
"references": [
"https://ubuntu.com/security/CVE-2026-73623",
"https://www.cve.org/CVERecord?id=CVE-2026-73623",
"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gf",
"https://www.vulncheck.com/advisories/gitpython-before-remote-code-execution-via-template"
]
},
"related_cves": [
{
"value": "CVE-2026-73623",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 360928,
"published_at": "2026-08-13T12:17:00+00:00"
}