{"id":"CVE-2026-76220","state":"PUBLISHED","title":"GitPython before 3.1.58 Command Execution via split_single_char_options","description":"GitPython before 3.1.58 contains a command execution vulnerability in the check_unsafe_options guard that can be bypassed by combining a single-character kwarg with split_single_char_options=False. Attackers can supply a crafted kwargs dictionary to guarded methods like clone_from to emit a joined token parsed as --upload-pack, enabling arbitrary OS command execution at default allow_unsafe_options=False.","publishedAt":"2026-08-19T14:02:04.108Z","updatedAt":"2026-10-08T15:25:01.788Z","severity":{"score":8.7,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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":"0","status":"affected","lessThan":"3.1.58","versionType":"semver"},{"version":"3.1.58","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wvpp-8hx9-p66j","https://www.vulncheck.com/advisories/gitpython-before-command-execution-via-split-single-char-options"],"weaknesses":["CWE-88"],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/76xxx/CVE-2026-76220.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-76220","state":"PUBLISHED","datePublished":"2026-08-19T14:02:04.108Z","dateUpdated":"2026-10-08T15:25:01.788Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-08-19T11:35:13.689Z"},"containers":{"cna":{"title":"GitPython before 3.1.58 Command Execution via split_single_char_options","descriptions":[{"lang":"en","value":"GitPython before 3.1.58 contains a command execution vulnerability in the check_unsafe_options guard that can be bypassed by combining a single-character kwarg with split_single_char_options=False. Attackers can supply a crafted kwargs dictionary to guarded methods like clone_from to emit a joined token parsed as --upload-pack, enabling arbitrary OS command execution at default allow_unsafe_options=False."}],"affected":[{"vendor":"gitpython-developers","product":"GitPython","packageURL":"pkg:pypi/gitpython","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"3.1.58","versionType":"semver"},{"version":"3.1.58","status":"unaffected","versionType":"semver"}]}],"references":[{"url":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-wvpp-8hx9-p66j","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-wvpp-8hx9-p66j)"},{"url":"https://www.vulncheck.com/advisories/gitpython-before-command-execution-via-split-single-char-options","name":"VulnCheck Advisory: GitPython before 3.1.58 Command Execution via split_single_char_options","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.7,"baseSeverity":"HIGH"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-88","lang":"en","description":"Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')","type":"CWE"}]}],"providerMetadata":{"shortName":"VulnCheck","orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateUpdated":"2026-10-08T15:25:01.788Z"},"datePublic":"2026-08-04T00:00:00.000Z","cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:*:*:*","versionEndExcluding":"3.1.58"}]}]}],"credits":[{"lang":"en","value":"manus-use","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-20T03:56:32.878302Z","id":"CVE-2026-76220","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-20T18:30:07.927Z"}}]}}}