{"id":"CVE-2026-35642","aliases":["EUVD-2026-21138","GHSA-3grx-cg6p-5wc6","GHSA-mw7w-g3mg-xqm7"],"status":"published","title":"OpenClaw \u003c 2026.3.25 - Authorization Bypass in Group Reactions via requireMention Bypass","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.","severity":{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00203,"percentile":0.10381,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-288","CWE-863"],"published":"2026-03-27T22:32:06Z","modified":"2026-10-28T02:30:43Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.3.24"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2026.3.24"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-mw7w-g3mg-xqm7","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/f8c98630785288cc1f1d0893503ef3b653a3cede","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-authorization-bypass-in-group-reactions-via-requiremention-bypass","tags":["third-party-advisory","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35642","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-3grx-cg6p-5wc6"},{"url":"https://github.com/advisories/GHSA-mw7w-g3mg-xqm7"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35642.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-35642","title":"OpenClaw \u003c 2026.3.25 - Authorization Bypass in Group Reactions via requireMention Bypass","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.","status":"published","published":"2026-04-09T21:27:09.493Z","modified":"2026-06-23T16:16:02.446Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:20:05.15083Z"}],"euvd":[{"id":"EUVD-2026-21138","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.","status":"published","published":"2026-04-09T21:27:09Z","modified":"2026-06-23T16:16:02Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:31.896888Z"}],"ghsa":[{"id":"GHSA-3grx-cg6p-5wc6","title":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction...","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.","status":"published","published":"2026-04-10T00:30:30Z","modified":"2026-04-10T00:30:37Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T15:07:24.354029Z"},{"id":"GHSA-mw7w-g3mg-xqm7","title":"OpenClaw: BlueBubbles Group Reactions Bypass requireMention and Still Enqueue Agent-Visible System Events","description":"## Summary\n\nBlueBubbles Group Reactions Bypass requireMention and Still Enqueue Agent-Visible System Events\n\n## Affected Packages / Versions\n\n- Package: `openclaw`\n- Affected versions: `\u003c= 2026.3.24`\n- First patched version: `2026.3.25`\n- Latest published npm version at verification time: `2026.3.24`\n\n## Details\n\nBlueBubbles group reaction events previously bypassed `requireMention` and still enqueued agent-visible system events in groups that were supposed to stay mention-gated. Commit `f8c98630785288cc1f1d0893503ef3b653a3cede` applies the reaction path to the same mention gate as normal group messages.\n\nVerified vulnerable on tag `v2026.3.24` and fixed on `main` by commit `f8c98630785288cc1f1d0893503ef3b653a3cede`.\n\n## Fix Commit(s)\n\n- `f8c98630785288cc1f1d0893503ef3b653a3cede`","status":"published","published":"2026-03-27T22:32:06Z","modified":"2026-03-27T22:32:06Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-288","CWE-863"],"updated_at":"2026-11-02T14:39:44.97342Z"}],"nvd":[{"id":"CVE-2026-35642","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.","status":"published","published":"2026-04-09T22:16:33.697Z","modified":"2026-06-17T10:40:56.76Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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":4.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T14:12:13.902911Z"}],"osv":[{"id":"CVE-2026-35642","title":"OpenClaw \u003c 2026.3.25 - Authorization Bypass in Group Reactions via requireMention Bypass","description":"OpenClaw before 2026.3.25 contains an authorization bypass vulnerability where group reaction events bypass the requireMention access control mechanism. Attackers can trigger reactions in mention-gated groups to enqueue agent-visible system events that should remain restricted.","status":"published","published":"2026-04-09T21:27:09.493Z","modified":"2026-10-28T02:30:43.017836812Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-288"],"updated_at":"2026-11-02T15:45:02.673625Z"},{"id":"GHSA-mw7w-g3mg-xqm7","title":"OpenClaw: BlueBubbles Group Reactions Bypass requireMention and Still Enqueue Agent-Visible System Events","description":"## Summary\n\nBlueBubbles Group Reactions Bypass requireMention and Still Enqueue Agent-Visible System Events\n\n## Affected Packages / Versions\n\n- Package: `openclaw`\n- Affected versions: `\u003c= 2026.3.24`\n- First patched version: `2026.3.25`\n- Latest published npm version at verification time: `2026.3.24`\n\n## Details\n\nBlueBubbles group reaction events previously bypassed `requireMention` and still enqueued agent-visible system events in groups that were supposed to stay mention-gated. Commit `f8c98630785288cc1f1d0893503ef3b653a3cede` applies the reaction path to the same mention gate as normal group messages.\n\nVerified vulnerable on tag `v2026.3.24` and fixed on `main` by commit `f8c98630785288cc1f1d0893503ef3b653a3cede`.\n\n## Fix Commit(s)\n\n- `f8c98630785288cc1f1d0893503ef3b653a3cede`","status":"published","published":"2026-03-27T22:32:06Z","modified":"2026-07-08T08:27:06.222886417Z","cvss":[{"version":"4.0","score":5.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-288","CWE-863"],"updated_at":"2026-11-02T15:46:52.170928Z"}]}}