{"id":"CVE-2026-32899","aliases":["EUVD-2026-13978","GHSA-rm2p-j3r7-4x4j"],"status":"published","title":"OpenClaw \u003c 2026.2.25 - Sender Policy Bypass in Slack Reaction and Pin Event Handlers","description":"OpenClaw versions prior to 2026.2.25 fail to consistently apply sender-policy checks to reaction_* and pin_* non-message events before adding them to system-event context. Attackers can bypass configured DM policies and channel user allowlists to inject unauthorized reaction and pin events from restricted senders.","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":0.00212,"percentile":0.11612,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2026-03-03T19:50:26Z","modified":"2026-10-28T02:30:23Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.2.25"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2026.2.24"},{"fixed":"2026.2.25"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.25"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-rm2p-j3r7-4x4j","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/aedf62ac7e669a89c7b299201bf6537dc6b12e0e","tags":["patch","Patch","fix","web"]},{"url":"https://github.com/openclaw/openclaw/commit/75dfb71e4e8b7c2feba5a8ca662f92ea840e0147","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-sender-policy-bypass-in-slack-reaction-and-pin-event-handlers","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32899","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rm2p-j3r7-4x4j"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/32xxx/CVE-2026-32899.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-32899","title":"OpenClaw \u003c 2026.2.25 - Sender Policy Bypass in Slack Reaction and Pin Event Handlers","description":"OpenClaw versions prior to 2026.2.25 fail to consistently apply sender-policy checks to reaction_* and pin_* non-message events before adding them to system-event context. Attackers can bypass configured DM policies and channel user allowlists to inject unauthorized reaction and pin events from restricted senders.","status":"published","published":"2026-03-21T00:42:35.477Z","modified":"2026-06-23T16:15:14.392Z","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-863"],"updated_at":"2026-11-02T14:19:57.100857Z"}],"euvd":[{"id":"EUVD-2026-13978","description":"OpenClaw versions prior to 2026.2.25 fail to consistently apply sender-policy checks to reaction_* and pin_* non-message events before adding them to system-event context. Attackers can bypass configured DM policies and channel user allowlists to inject unauthorized reaction and pin events from restricted senders.","status":"published","published":"2026-03-21T00:42:35Z","modified":"2026-06-23T16:15:14Z","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":"2026-11-02T18:20:32.273921Z"}],"ghsa":[{"id":"GHSA-rm2p-j3r7-4x4j","title":"OpenClaw's Slack reaction/pin sender-policy consistency issue in non-message ingress","description":"### Summary\nOpenClaw Slack monitor handled `reaction_*` and `pin_*` non-message events before applying sender-policy checks consistently.\n\nIn affected versions, these events could be added to system-event context even when sender policy would not normally allow them.\n\n### Affected Packages / Versions\n- Package: npm `openclaw`\n- Latest published affected version confirmed: `2026.2.24` (npm latest as of February 26, 2026)\n- Affected range: `\u003c= 2026.2.24`\n- Patched version : `2026.2.25`\n\n### Technical Details\n- `reaction_*` and `pin_*` handlers now route through shared sender authorization (`authorizeSlackSystemEventSender`).\n- Enforced checks now include:\n  - DM `dmPolicy` / `allowFrom`\n  - channel `users` allowlist enforcement for non-DM channels\n  - channel-level allow checks before system-event enqueue\n- Regression coverage added for DM allow/deny and channel-user allowlist deny paths.\n\n### Fix Commit(s)\n- `aedf62ac7e669a89c7b299201bf6537dc6b12e0e`\n- `75dfb71e4e8b7c2feba5a8ca662f92ea840e0147`\n\n### Impact\nLow-severity policy-consistency issue in Slack non-message event ingress.\nThis may introduce unexpected reaction/pin context signals from senders outside configured policy.\n\n### Release Process Note\n`patched_versions` is pre-set to planned release `2026.2.25`. Advisory published with npm release `2026.2.25`.\n\nOpenClaw thanks @tdjackey for reporting.","status":"published","published":"2026-03-03T19:50:26Z","modified":"2026-03-30T13:45:14Z","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"},{"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-863"],"updated_at":"2026-11-02T14:39:46.119458Z"}],"nvd":[{"id":"CVE-2026-32899","description":"OpenClaw versions prior to 2026.2.25 fail to consistently apply sender-policy checks to reaction_* and pin_* non-message events before adding them to system-event context. Attackers can bypass configured DM policies and channel user allowlists to inject unauthorized reaction and pin events from restricted senders.","status":"published","published":"2026-03-21T01:17:11.067Z","modified":"2026-06-17T10:36:32.22Z","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-863"],"updated_at":"2026-11-02T14:12:10.126802Z"}],"osv":[{"id":"CVE-2026-32899","title":"OpenClaw \u003c 2026.2.25 - Sender Policy Bypass in Slack Reaction and Pin Event Handlers","description":"OpenClaw versions prior to 2026.2.25 fail to consistently apply sender-policy checks to reaction_* and pin_* non-message events before adding them to system-event context. Attackers can bypass configured DM policies and channel user allowlists to inject unauthorized reaction and pin events from restricted senders.","status":"published","published":"2026-03-21T00:42:35.477Z","modified":"2026-10-28T02:30:23.555729898Z","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-863"],"updated_at":"2026-11-02T15:45:01.548715Z"},{"id":"GHSA-rm2p-j3r7-4x4j","title":"OpenClaw's Slack reaction/pin sender-policy consistency issue in non-message ingress","description":"### Summary\nOpenClaw Slack monitor handled `reaction_*` and `pin_*` non-message events before applying sender-policy checks consistently.\n\nIn affected versions, these events could be added to system-event context even when sender policy would not normally allow them.\n\n### Affected Packages / Versions\n- Package: npm `openclaw`\n- Latest published affected version confirmed: `2026.2.24` (npm latest as of February 26, 2026)\n- Affected range: `\u003c= 2026.2.24`\n- Patched version : `2026.2.25`\n\n### Technical Details\n- `reaction_*` and `pin_*` handlers now route through shared sender authorization (`authorizeSlackSystemEventSender`).\n- Enforced checks now include:\n  - DM `dmPolicy` / `allowFrom`\n  - channel `users` allowlist enforcement for non-DM channels\n  - channel-level allow checks before system-event enqueue\n- Regression coverage added for DM allow/deny and channel-user allowlist deny paths.\n\n### Fix Commit(s)\n- `aedf62ac7e669a89c7b299201bf6537dc6b12e0e`\n- `75dfb71e4e8b7c2feba5a8ca662f92ea840e0147`\n\n### Impact\nLow-severity policy-consistency issue in Slack non-message event ingress.\nThis may introduce unexpected reaction/pin context signals from senders outside configured policy.\n\n### Release Process Note\n`patched_versions` is pre-set to planned release `2026.2.25`. Advisory published with npm release `2026.2.25`.\n\nOpenClaw thanks @tdjackey for reporting.","status":"published","published":"2026-03-03T19:50:26Z","modified":"2026-03-30T14:11:33.485794Z","cvss":[{"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"},{"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-863"],"updated_at":"2026-11-02T15:46:55.877614Z"}]}}