{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-86035", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-04T19:29:21.057Z", "datePublished": "2026-09-29T14:58:20.313Z", "dateUpdated": "2026-09-29T14:58:20.313Z"}, "containers": {"cna": {"title": "Weblate: Mercurial argument injection via repository filenames allows authenticated command execution", "problemTypes": [{"descriptions": [{"cweId": "CWE-78", "lang": "en", "description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-88", "lang": "en", "description": "CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/WeblateOrg/weblate/security/advisories/GHSA-327h-qqgm-qv55", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/WeblateOrg/weblate/security/advisories/GHSA-327h-qqgm-qv55"}, {"name": "https://github.com/WeblateOrg/weblate/pull/20768", "tags": ["x_refsource_MISC"], "url": "https://github.com/WeblateOrg/weblate/pull/20768"}, {"name": "https://github.com/WeblateOrg/weblate/commit/f60a9759a6d851bd10ccdefe9b1b7f0cdb9e9bbd", "tags": ["x_refsource_MISC"], "url": "https://github.com/WeblateOrg/weblate/commit/f60a9759a6d851bd10ccdefe9b1b7f0cdb9e9bbd"}, {"name": "https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.8", "tags": ["x_refsource_MISC"], "url": "https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.8"}], "affected": [{"vendor": "WeblateOrg", "product": "weblate", "versions": [{"version": ">= 4.11.1, < 2026.8", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-29T14:58:20.313Z"}, "descriptions": [{"lang": "en", "value": "Weblate is a web-based continuous localization platform used to manage software translations. Weblate 4.11.1 through 2026.7.1 contains an argument-injection vulnerability in its Mercurial backend. Repository filenames beginning with - could be interpreted as Mercurial options instead of literal paths. An authenticated user with project-scoped component.edit permission could exploit this through a Mercurial-backed RESX component using the Update RESX files add-on. A later repository update could execute arbitrary commands with the privileges of the Weblate service account. This is a residual incomplete fix for CVE-2022-23915. This issue has been patched in version 2026.8."}], "source": {"advisory": "GHSA-327h-qqgm-qv55", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "weblate", "vendor": "WeblateOrg", "versions": [{"status": "affected", "version": ">= 4.11.1, < 2026.8"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Weblate is a web-based continuous localization platform used to manage software translations. Weblate 4.11.1 through 2026.7.1 contains an argument-injection vulnerability in its Mercurial backend. Repository filenames beginning with - could be interpreted as Mercurial options instead of literal paths. An authenticated user with project-scoped component.edit permission could exploit this through a Mercurial-backed RESX component using the Update RESX files add-on. A later repository update could execute arbitrary commands with the privileges of the Weblate service account. This is a residual incomplete fix for CVE-2022-23915. This issue has been patched in version 2026.8."}], "id": "CVE-2026-86035", "lastModified": "2026-09-30T19:57:08.043", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.5, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-29T15:17:30.407", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/WeblateOrg/weblate/commit/f60a9759a6d851bd10ccdefe9b1b7f0cdb9e9bbd"}, {"source": "security-advisories@github.com", "url": "https://github.com/WeblateOrg/weblate/pull/20768"}, {"source": "security-advisories@github.com", "url": "https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.8"}, {"source": "security-advisories@github.com", "url": "https://github.com/WeblateOrg/weblate/security/advisories/GHSA-327h-qqgm-qv55"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-78"}, {"lang": "en", "value": "CWE-88"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[4.11.1,2026.8)"}}], "enrichment": {"confidence": 91.0, "confidence_source": "matching", "scores": [{"score": 91.0, "source": "matching"}]}, "original": {"product": "weblate", "source": "cna", "vendor": "WeblateOrg"}, "product": "weblate", "vendor": "weblate"}], "created": "2026-09-30T01:30:17.837127+00:00", "updated": "2026-09-30T20:30:18.220442+00:00", "vendors": ["weblate", "weblate$PRODUCT$weblate"]}