{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-73621","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-08-13T11:17:25.160Z","datePublished":"2026-08-13T11:28:22.108Z","dateUpdated":"2026-10-08T15:24:41.812Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-08T15:24:41.812Z"},"datePublic":"2026-07-25T00:00:00.000Z","title":"GitPython before 3.1.56 Arbitrary File Truncation via Commit.count","descriptions":[{"lang":"en","value":"GitPython before 3.1.56 contains an argument injection vulnerability in the Commit.count() method, which forwards keyword arguments to 'git rev-list' without the check_unsafe_options guard present in the sibling iter_items method. An attacker who can control options passed to Commit.count (e.g., via an application that forwards a user-supplied options dict) can supply output=<path>, causing 'git rev-list --output=<path>' to open and truncate the target file to zero bytes before revision parsing. This allows destruction/blanking of an arbitrary file at the process's privilege level (no content control, 0-byte truncation)."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')","cweId":"CWE-88","type":"CWE"}]}],"affected":[{"vendor":"gitpython-developers","product":"GitPython","defaultStatus":"unaffected","packageURL":"pkg:pypi/gitpython","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"3.1.56"},{"version":"3.1.56","status":"unaffected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*","versionEndExcluding":"3.1.56"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/gitpython-developers/GitPython/security/advisories/GHSA-p538-c434-8v24","tags":["vendor-advisory"],"name":"GitHub Security Advisory (GHSA-p538-c434-8v24)"},{"name":"VulnCheck Advisory: GitPython before 3.1.56 Arbitrary File Truncation via Commit.count","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/gitpython-before-arbitrary-file-truncation-via-commit-count"}],"credits":[{"lang":"en","value":"manus-use","type":"reporter"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-14T18:02:51.509040Z","id":"CVE-2026-73621","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-14T18:10:19.023Z"}}]}}