{"id":"CVE-2026-41393","aliases":["EUVD-2026-26101","GHSA-q9w8-cf67-r238"],"status":"published","title":"OpenClaw \u003c 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery","description":"OpenClaw before 2026.3.31 contains a wide-area discovery vulnerability allowing arbitrary tailnet peers to be accepted as DNS authorities. Attackers with same-tailnet position and CA-trusted endpoint access can exfiltrate operator credentials through DNS steering manipulation.","severity":{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00117,"percentile":0.01674,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-346","CWE-350"],"published":"2026-04-03T03:22:32Z","modified":"2026-10-28T02:30:45Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.3.31"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.3.28"},{"fixed":"2026.3.31"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.31"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-q9w8-cf67-r238","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/a23c33a681f8c1b22dc793995acc4c5c4b568346","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-arbitrary-dns-authority-acceptance-and-credential-exfiltration-via-wide-area-discovery","tags":["third-party-advisory","Third Party Advisory","advisory"]},{"url":"https://github.com/openclaw/openclaw/releases/tag/v2026.3.31","tags":["web"]},{"url":"https://github.com/advisories/GHSA-q9w8-cf67-r238"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41393.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41393","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-41393","title":"OpenClaw \u003c 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery","description":"OpenClaw before 2026.3.31 contains a wide-area discovery vulnerability allowing arbitrary tailnet peers to be accepted as DNS authorities. Attackers with same-tailnet position and CA-trusted endpoint access can exfiltrate operator credentials through DNS steering manipulation.","status":"published","published":"2026-04-28T18:09:53.474Z","modified":"2026-04-29T12:50:27.756Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T13:41:08.498858Z"}],"euvd":[{"id":"EUVD-2026-26101","description":"OpenClaw before 2026.3.31 contains a wide-area discovery vulnerability allowing arbitrary tailnet peers to be accepted as DNS authorities. Attackers with same-tailnet position and CA-trusted endpoint access can exfiltrate operator credentials through DNS steering manipulation.","status":"published","published":"2026-04-28T18:09:53Z","modified":"2026-04-29T12:50:27Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:05:20.318185Z"}],"ghsa":[{"id":"GHSA-q9w8-cf67-r238","title":"OpenClaw: macOS Tailnet DNS Spoofing \u0026 Credential Exfiltration","description":"## Summary\nmacOS Wide-Area Discovery Accepts Arbitrary Tailnet Peer as DNS Authority and Exfiltrates Operator Credentials\n\n## Current Maintainer Triage\n- Status: narrow\n- Normalized severity: medium\n- Assessment: Real shipped macOS discovery steering bug, but exploitation needs same-tailnet position, a CA-trusted endpoint, and user selection, so medium not high.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version: `2026.3.31`\n- Vulnerable version range: `\u003c=2026.3.28`\n- Patched versions: `\u003e= 2026.3.31`\n- First stable tag containing the fix: `v2026.3.31`\n\n## Fix Commit(s)\n- `a23c33a681f8c1b22dc793995acc4c5c4b568346` — 2026-03-31T10:04:11+01:00\n\nOpenClaw thanks @nexrin for reporting.","status":"published","published":"2026-04-03T03:22:32Z","modified":"2026-04-28T18:20:32Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-346","CWE-350"],"updated_at":"2026-11-02T14:39:59.776263Z"}],"nvd":[{"id":"CVE-2026-41393","description":"OpenClaw before 2026.3.31 contains a wide-area discovery vulnerability allowing arbitrary tailnet peers to be accepted as DNS authorities. Attackers with same-tailnet position and CA-trusted endpoint access can exfiltrate operator credentials through DNS steering manipulation.","status":"published","published":"2026-04-28T19:37:42.59Z","modified":"2026-06-17T10:46:38.95Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/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":"medium","assessor":"secondary"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":4.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T14:12:16.252509Z"}],"osv":[{"id":"CVE-2026-41393","title":"OpenClaw \u003c 2026.3.31 - Arbitrary DNS Authority Acceptance and Credential Exfiltration via Wide-Area Discovery","description":"OpenClaw before 2026.3.31 contains a wide-area discovery vulnerability allowing arbitrary tailnet peers to be accepted as DNS authorities. Attackers with same-tailnet position and CA-trusted endpoint access can exfiltrate operator credentials through DNS steering manipulation.","status":"published","published":"2026-04-28T18:09:53.474Z","modified":"2026-10-28T02:30:45.579148612Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-346"],"updated_at":"2026-11-02T15:45:03.764807Z"},{"id":"GHSA-q9w8-cf67-r238","title":"OpenClaw: macOS Tailnet DNS Spoofing \u0026 Credential Exfiltration","description":"## Summary\nmacOS Wide-Area Discovery Accepts Arbitrary Tailnet Peer as DNS Authority and Exfiltrates Operator Credentials\n\n## Current Maintainer Triage\n- Status: narrow\n- Normalized severity: medium\n- Assessment: Real shipped macOS discovery steering bug, but exploitation needs same-tailnet position, a CA-trusted endpoint, and user selection, so medium not high.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Latest published npm version: `2026.3.31`\n- Vulnerable version range: `\u003c=2026.3.28`\n- Patched versions: `\u003e= 2026.3.31`\n- First stable tag containing the fix: `v2026.3.31`\n\n## Fix Commit(s)\n- `a23c33a681f8c1b22dc793995acc4c5c4b568346` — 2026-03-31T10:04:11+01:00\n\nOpenClaw thanks @nexrin for reporting.","status":"published","published":"2026-04-03T03:22:32Z","modified":"2026-05-05T16:11:50.65895Z","cvss":[{"version":"4.0","score":7.1,"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-346","CWE-350"],"updated_at":"2026-11-02T15:46:54.40888Z"}]}}