{"id":"CVE-2026-33581","aliases":["EUVD-2026-17441","GHSA-3gr8-2752-h46q","GHSA-v8wv-jg3q-qwpq"],"status":"published","title":"OpenClaw \u003c 2026.3.24 - Arbitrary File Read via mediaUrl and fileUrl Parameters","description":"OpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.","severity":{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00577,"percentile":0.47991,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-22"],"published":"2026-03-31T14:10:33Z","modified":"2026-10-28T02:31:05Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.3.24"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.3.24"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.24"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-v8wv-jg3q-qwpq","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/1d7cb6fc03552bbba00e7cffb3aa9741f5556416","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-arbitrary-file-read-via-mediaurl-and-fileurl-parameters","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33581","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3gr8-2752-h46q"},{"url":"https://github.com/advisories/GHSA-v8wv-jg3q-qwpq"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33581.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-33581","title":"OpenClaw \u003c 2026.3.24 - Arbitrary File Read via mediaUrl and fileUrl Parameters","description":"OpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.","status":"published","published":"2026-03-31T14:10:33.685Z","modified":"2026-09-24T14:17:26.158Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:20:08.009733Z"}],"euvd":[{"id":"EUVD-2026-17441","description":"OpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.","status":"published","published":"2026-03-31T14:10:33Z","modified":"2026-09-24T14:17:26Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:27:58.186745Z"}],"ghsa":[{"id":"GHSA-3gr8-2752-h46q","title":"Duplicate Advisory: OpenClaw's message tool media parameter bypasses tool policy filesystem isolation","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-v8wv-jg3q-qwpq. This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.","status":"withdrawn","published":"2026-03-31T15:31:56Z","modified":"2026-03-31T23:54:25Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:39:47.075804Z"},{"id":"GHSA-v8wv-jg3q-qwpq","title":"OpenClaw's message tool media parameter bypasses tool policy filesystem isolation","description":"## Summary\n\nThe message tool accepted `mediaUrl` and `fileUrl` aliases without applying the same sandbox localRoots validation as the canonical media path handling.\n\n## Impact\n\nA caller constrained to sandbox media roots could read arbitrary local files by routing them through the alias parameters.\n\n## Affected Component\n\n`src/infra/outbound/message-action-params.ts, src/infra/outbound/message-action-runner.ts`\n\n## Fixed Versions\n\n- Affected: `\u003c 2026.3.24`\n- Patched: `\u003e= 2026.3.24`\n- Latest stable `2026.3.28` contains the fix.\n\n## Fix\n\nFixed by commit `1d7cb6fc03` (`fix: close sandbox media root bypass for mediaUrl/fileUrl aliases`).\n\nOpenClaw thanks @AntAISecurityLab for reporting.","status":"published","published":"2026-03-31T23:54:28Z","modified":"2026-04-06T17:34:19Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:39:48.966685Z"}],"nvd":[{"id":"CVE-2026-33581","description":"OpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.","status":"published","published":"2026-03-31T15:16:15.373Z","modified":"2026-07-24T21:10:00.143Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","level":"high","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:12:12.261218Z"}],"osv":[{"id":"CVE-2026-33581","title":"OpenClaw \u003c 2026.3.24 - Arbitrary File Read via mediaUrl and fileUrl Parameters","description":"OpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.","status":"published","published":"2026-03-31T14:10:33.685Z","modified":"2026-10-28T02:31:05.185104228Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:45:01.896044Z"},{"id":"GHSA-3gr8-2752-h46q","title":"Duplicate Advisory: OpenClaw's message tool media parameter bypasses tool policy filesystem isolation","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-v8wv-jg3q-qwpq. This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.","status":"withdrawn","published":"2026-03-31T15:31:56Z","modified":"2026-04-01T00:06:03.132144Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:35.747385Z"},{"id":"GHSA-v8wv-jg3q-qwpq","title":"OpenClaw's message tool media parameter bypasses tool policy filesystem isolation","description":"## Summary\n\nThe message tool accepted `mediaUrl` and `fileUrl` aliases without applying the same sandbox localRoots validation as the canonical media path handling.\n\n## Impact\n\nA caller constrained to sandbox media roots could read arbitrary local files by routing them through the alias parameters.\n\n## Affected Component\n\n`src/infra/outbound/message-action-params.ts, src/infra/outbound/message-action-runner.ts`\n\n## Fixed Versions\n\n- Affected: `\u003c 2026.3.24`\n- Patched: `\u003e= 2026.3.24`\n- Latest stable `2026.3.28` contains the fix.\n\n## Fix\n\nFixed by commit `1d7cb6fc03` (`fix: close sandbox media root bypass for mediaUrl/fileUrl aliases`).\n\nOpenClaw thanks @AntAISecurityLab for reporting.","status":"published","published":"2026-03-31T23:54:28Z","modified":"2026-04-06T17:57:35.035381Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"},{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:46:56.981655Z"}]}}