{"id":"CVE-2026-41389","aliases":["GHSA-mr34-9552-qr95"],"url":"https://o3.security/vulnerability/CVE-2026-41389","summary":"OpenClaw 2026.4.7 < 2026.4.15 - Arbitrary File Read via Unvalidated Tool-Result Media Paths","details":"## Summary\n\nWebchat tool-result media normalization could pass local and UNC-style file paths into the host-side media embedding path without applying the configured local-root containment policy.\n\n## Impact\n\nA crafted tool-result media reference could cause the host to attempt local file reads or Windows UNC/network path access while preparing webchat media blocks. This could disclose allowed host files or trigger network credential exposure on affected Windows deployments. Severity remains medium because exploitation depends on a tool-result media path reaching the webchat embedding path, but the sink is a host-side file read before the user sees the rendered result.\n\n## Affected versions\n\n- Affected: `>= 2026.4.7, < 2026.4.15`\n- Patched: `2026.4.15`\n\n## Fix\n\nOpenClaw `2026.4.15` hardens the webchat media path and the shared media resolver. Remote-host `file://` URLs and Windows network paths are rejected before filesystem access, and audio embedding now enforces configured `localRoots` containment before `stat` or read operations.\n\nVerified in `v2026.4.15`:\n\n- `src/gateway/server-methods/chat-webchat-media.ts` uses safe file-URL parsing, rejects Windows network paths, and calls `assertLocalMediaAllowed` before probing local audio files.\n- `src/media/web-media.ts` rejects remote-host `file://` URLs, Windows network paths, and local-root bypasses on the shared media path.\n- `src/gateway/server-methods/chat-webchat-media.test.ts` covers both remote-host `file://` rejection and local-root denial before filesystem access.\n\nFix commits included in `v2026.4.15` and absent from `v2026.4.14`:\n\n- `1470de5d3e0970856d86cd99336bb8ada3fe87da` via PR #67293\n- `6e58f1f9f54bca1fea1268ec0ee4c01a2af03dde` via PR #67298\n- `52ef42302ead9e183e6c8810e0a04ee4ef8ae9fc` via PR #67303 as defense-in-depth for trusted media passthrough anchoring\n\nThanks to @Kherrisan for reporting this issue.","published":"2026-04-20T17:48:43.704Z","modified":"2026-10-28T02:30:39.966118920Z","cvss":null,"epss":{"score":0.00264,"percentile":0.18171,"asOf":"2026-08-12"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.4.15"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/1470de5d3e0970856d86cd99336bb8ada3fe87da","label":"openclaw/openclaw@1470de5"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41389.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-mr34-9552-qr95"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41389"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-arbitrary-file-read-via-unvalidated-tool-result-media-paths"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/1470de5d3e0970856d86cd99336bb8ada3fe87da"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/52ef42302ead9e183e6c8810e0a04ee4ef8ae9fc"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/6e58f1f9f54bca1fea1268ec0ee4c01a2af03dde"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/pull/67293"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/pull/67298"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/pull/67303"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:39.966118920Z"}}