{"id":"CVE-2026-67324","state":"PUBLISHED","title":"GitPython 3.1.50 Authentication Bypass via Joined Short Options","description":"GitPython 3.1.50 fails to recognize joined short-option forms such as -u<value> (the short form of --upload-pack=<value>) 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<helper> to bypass the gate that blocks --upload-pack/-u, causing Git to execute the specified helper command during clone. Fixed in 3.1.51.","publishedAt":"2026-08-01T12:22:18.154Z","updatedAt":"2026-10-08T15:24:05.735Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["gitpython-developers GitPython"],"affected":[{"vendor":"gitpython-developers","product":"GitPython","packageURL":"pkg:pypi/gitpython","defaultStatus":"unaffected","versions":[{"version":"3.1.50","status":"affected","lessThan":"3.1.51","versionType":"semver"},{"version":"3.1.51","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-v396-v7q4-x2qj","https://www.vulncheck.com/advisories/gitpython-authentication-bypass-via-joined-short-options"],"weaknesses":["CWE-78"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/67xxx/CVE-2026-67324.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-67324","state":"PUBLISHED","datePublished":"2026-08-01T12:22:18.154Z","dateUpdated":"2026-10-08T15:24:05.735Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-07-29T13:07:21.184Z"},"containers":{"cna":{"title":"GitPython 3.1.50 Authentication Bypass via Joined Short Options","descriptions":[{"lang":"en","value":"GitPython 3.1.50 fails to recognize joined short-option forms such as -u<value> (the short form of --upload-pack=<value>) 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<helper> to bypass the gate that blocks --upload-pack/-u, causing Git to execute the specified helper command during clone. Fixed in 3.1.51."}],"affected":[{"vendor":"gitpython-developers","product":"GitPython","packageURL":"pkg:pypi/gitpython","defaultStatus":"unaffected","versions":[{"version":"3.1.50","status":"affected","lessThan":"3.1.51","versionType":"semver"},{"version":"3.1.51","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-v396-v7q4-x2qj","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-v396-v7q4-x2qj)"},{"url":"https://www.vulncheck.com/advisories/gitpython-authentication-bypass-via-joined-short-options","name":"VulnCheck Advisory: GitPython 3.1.50 Authentication Bypass via Joined Short Options","tags":["third-party-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS"},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-78","lang":"en","description":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-08T15:24:05.735Z"},"datePublic":"2026-07-12T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*","versionStartIncluding":"3.1.50","versionEndExcluding":"3.1.51"}]}]}],"credits":[{"lang":"en","value":"Faze-up","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-05T03:56:23.695632Z","id":"CVE-2026-67324","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-05T13:37:56.761Z"}}]}}}