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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.

PUBLISHED Reserved 2026-03-16 | Published 2026-03-21 | Updated 2026-03-21 | Assigner VulnCheck




MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Problem types

CWE-863: Incorrect Authorization

Product status

Default status
unaffected

Any version before 2026.2.25
affected

2026.2.25 (semver)
unaffected

Credits

tdjackey reporter

References

github.com/...enclaw/security/advisories/GHSA-rm2p-j3r7-4x4j (GitHub Security Advisory (GHSA-rm2p-j3r7-4x4j)) third-party-advisory

github.com/...ommit/aedf62ac7e669a89c7b299201bf6537dc6b12e0e (Patch Commit #1) patch

github.com/...ommit/75dfb71e4e8b7c2feba5a8ca662f92ea840e0147 (Patch Commit #2) patch

www.vulncheck.com/...n-slack-reaction-and-pin-event-handlers (VulnCheck Advisory: OpenClaw < 2026.2.25 - Sender Policy Bypass in Slack Reaction and Pin Event Handlers) third-party-advisory

cve.org (CVE-2026-32899)

nvd.nist.gov (CVE-2026-32899)

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