CVE-2026-73509

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{"affected": [{"affectedData": [{"product": "OpenList", "vendor": "OpenListTeam", "versions": [{"status": "affected", "version": "< 4.2.4"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenList a file list program that supports multiple storage. Prior to 4.2.4, the authenticated /api/fs/batch_rename handler in server/handles/fsbatch.go authorizes only the source directory produced by user.JoinPath(req.SrcDir) and validates renameObject.NewName with checkRelativePath, but does not validate attacker-controlled renameObject.SrcName, supplied as src_name, before concatenating it with the authorized path and passing the result to fs.Rename. A user with rename permission can use traversal segments in src_name to make path normalization select a file outside the authorized directory and configured base path, resulting in cross-user file integrity loss, limited availability impact, and file-existence disclosure through success or error responses. This issue is fixed in version 4.2.4."}], "id": "CVE-2026-73509", "lastModified": "2026-09-18T20:09:01.757", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 4.7, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-73509", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-13T15:19:27.412169Z", "version": "2.0.3"}}]}, "published": "2026-08-13T15:20:17.623", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/OpenListTeam/OpenList/commit/651da18da4c647d96648d4bb64462baac1c37e04"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenListTeam/OpenList/releases/tag/v4.2.4"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-95cv-r8x4-vh75"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-95cv-r8x4-vh75"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-22"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.2.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenList", "source": "cna", "vendor": "OpenListTeam"}, "product": "openlist", "vendor": "openlistteam"}], "created": "2026-08-13T16:30:03.492139+00:00", "updated": "2026-08-13T20:15:03.042936+00:00", "vendors": ["openlistteam", "openlistteam$PRODUCT$openlist"]}