CVE-2026-32899
OpenClaw's Slack reaction/pin sender-policy consistency issue in non-message ingress
Impact
### Summary OpenClaw Slack monitor handled `reaction_*` and `pin_*` non-message events before applying sender-policy checks consistently. In affected versions, these events could be added to system-event context even when sender policy would not normally allow them. ### Affected Packages / Versions - Package: npm `openclaw` - Latest published affected version confirmed: `2026.2.24` (npm latest as of February 26, 2026) - Affected range: `<= 2026.2.24` - Patched version : `2026.2.25` ### Technical Details - `reaction_*` and `pin_*` handlers now route through shared sender authorization (`authorizeSlackSystemEventSender`). - Enforced checks now include: - DM `dmPolicy` / `allowFrom` - channel `users` allowlist enforcement for non-DM channels - channel-level allow checks before system-event enqueue - Regression coverage added for DM allow/deny and channel-user allowlist deny paths. ### Fix Commit(s) - `aedf62ac7e669a89c7b299201bf6537dc6b12e0e` - `75dfb71e4e8b7c2feba5a8ca662f92ea840e0147` ### Impact Low-severity policy-consistency issue in Slack non-message event ingress. This may introduce unexpected reaction/pin context signals from senders outside configured policy. ### Release Process Note `patched_versions` is pre-set to planned release `2026.2.25`. Advisory published with npm release `2026.2.25`. OpenClaw thanks @tdjackey for reporting.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | openclaw | <= 2026.2.24 | 2026.2.25 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Openclaw | Openclaw | before 2026.2.25 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/openclaw/openclaw/commit/75dfb71e4e8b7c2feba5a8ca662f92ea840e0147
- https://github.com/openclaw/openclaw/commit/aedf62ac7e669a89c7b299201bf6537dc6b12e0e
- https://github.com/openclaw/openclaw/security/advisories/GHSA-rm2p-j3r7-4x4j
- https://www.vulncheck.com/advisories/openclaw-sender-policy-bypass-in-slack-reaction-and-pin-event-handlers
- https://github.com/advisories/GHSA-rm2p-j3r7-4x4j
- https://nvd.nist.gov/vuln/detail/CVE-2026-32899