CVE-2026-73623
Full vulnerability record from the local CVENow database.
Description
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.
Severity
HIGH
CVSS score
7.7
(v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-08-13 12:17:27.477000
Last modified
2026-10-24 15:10:00.190000
View original CVE JSON
{
"id": "CVE-2026-73623",
"sourceIdentifier": "[email protected]",
"published": "2026-08-13T12:17:27.477",
"lastModified": "2026-10-24T15:10:00.190",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "GitPython anterior a la versión 3.1.54 contiene una lista de denegación incompleta en unsafe_git_clone_options que omite --template, permitiendo a los atacantes lograr la ejecución arbitraria de comandos durante las operaciones de clonación. Los atacantes pueden proporcionar --template apuntando a un directorio que contiene hooks post-checkout maliciosos que se ejecutan cuando git clona el repositorio."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "gitpython-developers",
"product": "GitPython",
"defaultStatus": "unaffected",
"packageURL": "pkg:pypi/GitPython",
"versions": [
{
"version": "0",
"lessThan": "3.1.54",
"versionType": "semver",
"status": "affected"
},
{
"version": "3.1.54",
"versionType": "semver",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 7.7,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnAvailabilityImpact": "HIGH",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"scope": "UNCHANGED",
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"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.6,
"impactScore": 5.9
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"availabilityImpact": "HIGH"
},
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}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
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"id": "CVE-2026-73623",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
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},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-78"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"matchCriteriaId": "AA984FF5-10CD-45B3-A5DE-FCFE2D3204E3"
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}
],
"references": [
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"url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gf",
"source": "[email protected]",
"tags": [
"Exploit",
"Vendor Advisory"
]
},
{
"url": "https://www.vulncheck.com/advisories/gitpython-before-remote-code-execution-via-template",
"source": "[email protected]",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-6p8h-3wgx-97gf",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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}