{"id":"CVE-2026-41344","aliases":["EUVD-2026-25328","GHSA-5h2w-qmfp-ggp6","GHSA-v3c2-39fm-jq4h"],"status":"published","title":"OpenClaw \u003c 2026.3.28 - Privilege Escalation via chat.send /verbose Parameter","description":"OpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00209,"percentile":0.11075,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-284","CWE-863"],"published":"2026-03-31T23:57:34Z","modified":"2026-10-28T02:30:31Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.3.28"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.3.24"},{"fixed":"2026.3.28"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.28"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-5h2w-qmfp-ggp6","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-chat-send-verbose-parameter","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/c6031235288a8d3bdf2243bd974340d8c8045bc2","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41344","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-5h2w-qmfp-ggp6"},{"url":"https://github.com/advisories/GHSA-v3c2-39fm-jq4h"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41344.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-41344","title":"OpenClaw \u003c 2026.3.28 - Privilege Escalation via chat.send /verbose Parameter","description":"OpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.","status":"published","published":"2026-04-23T21:58:02.772Z","modified":"2026-04-24T18:19:18.188Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T13:40:57.334596Z"}],"euvd":[{"id":"EUVD-2026-25328","description":"OpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.","status":"published","published":"2026-04-23T21:58:02Z","modified":"2026-04-24T18:19:18Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:24:18.224827Z"}],"ghsa":[{"id":"GHSA-5h2w-qmfp-ggp6","title":"OpenClaw: Gateway `operator.write` can reach admin-only persisted `verboseLevel` via `chat.send` `/verbose`","description":"## Summary\n\nThe `chat.send` path let authorized write-scoped callers persist `/verbose` session overrides even though the same stored session mutation is admin-only through `sessions.patch`.\n\n## Impact\n\nA write-scoped gateway caller could persist verbose output for later runs and expose more reasoning or tool output than the operator intended.\n\n## Affected Component\n\n`src/auto-reply/reply/directive-handling.impl.ts, src/gateway/sessions-patch.ts`\n\n## Fixed Versions\n\n- Affected: `\u003c= 2026.3.24`\n- Patched: `\u003e= 2026.3.28`\n- Latest stable `2026.3.28` contains the fix.\n\n## Fix\n\nFixed by commit `c603123528` (`fix(gateway): require admin for persisted verbose defaults`).","status":"published","published":"2026-03-31T23:57:34Z","modified":"2026-05-08T18:13:34Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-284","CWE-863"],"updated_at":"2026-11-02T14:40:04.762828Z"},{"id":"GHSA-v3c2-39fm-jq4h","title":"Duplicate Advisory: OpenClaw: Gateway `operator.write` can reach admin-only persisted `verboseLevel` via `chat.send` `/verbose`","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-5h2w-qmfp-ggp6. This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.","status":"withdrawn","published":"2026-04-24T00:31:51Z","modified":"2026-05-06T23:04:44Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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":"medium"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:40:02.883746Z"}],"nvd":[{"id":"CVE-2026-41344","description":"OpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.","status":"published","published":"2026-04-23T22:16:40.97Z","modified":"2026-06-17T10:46:32.977Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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":"medium","assessor":"secondary"},{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:15.867234Z"}],"osv":[{"id":"CVE-2026-41344","title":"OpenClaw \u003c 2026.3.28 - Privilege Escalation via chat.send /verbose Parameter","description":"OpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.","status":"published","published":"2026-04-23T21:58:02.772Z","modified":"2026-10-28T02:30:31.708317997Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:45:03.764807Z"},{"id":"GHSA-5h2w-qmfp-ggp6","title":"OpenClaw: Gateway `operator.write` can reach admin-only persisted `verboseLevel` via `chat.send` `/verbose`","description":"## Summary\n\nThe `chat.send` path let authorized write-scoped callers persist `/verbose` session overrides even though the same stored session mutation is admin-only through `sessions.patch`.\n\n## Impact\n\nA write-scoped gateway caller could persist verbose output for later runs and expose more reasoning or tool output than the operator intended.\n\n## Affected Component\n\n`src/auto-reply/reply/directive-handling.impl.ts, src/gateway/sessions-patch.ts`\n\n## Fixed Versions\n\n- Affected: `\u003c= 2026.3.24`\n- Patched: `\u003e= 2026.3.28`\n- Latest stable `2026.3.28` contains the fix.\n\n## Fix\n\nFixed by commit `c603123528` (`fix(gateway): require admin for persisted verbose defaults`).","status":"published","published":"2026-03-31T23:57:34Z","modified":"2026-05-08T18:41:24.555118Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-284","CWE-863"],"updated_at":"2026-11-02T15:46:38.553953Z"},{"id":"GHSA-v3c2-39fm-jq4h","title":"Duplicate Advisory: OpenClaw: Gateway `operator.write` can reach admin-only persisted `verboseLevel` via `chat.send` `/verbose`","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-5h2w-qmfp-ggp6. This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw before 2026.3.28 contains a privilege escalation vulnerability in the chat.send endpoint that allows write-scoped gateway callers to persist admin-only verboseLevel session overrides. Attackers can exploit the /verbose parameter to bypass access controls and expose sensitive reasoning or tool output intended to be restricted to administrators.","status":"withdrawn","published":"2026-04-24T00:31:51Z","modified":"2026-05-06T23:19:41.341795Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"},{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:46:56.639206Z"}]}}