Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-rm2p-j3r7-4x4j
Advisory ID github_osv/GHSA-rm2p-j3r7-4x4j
Aliases CVE-2026-32899
Summary OpenClaw's Slack reaction/pin sender-policy consistency issue in non-message ingress ### 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.
Status Published
Exploitability 0.5
Weighted Severity 4.8
Risk 2.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
CWE-863 Incorrect Authorization
System Score Found at
cvssv3.1 4.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-rm2p-j3r7-4x4j/GHSA-rm2p-j3r7-4x4j.json
cvssv4 5.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-rm2p-j3r7-4x4j/GHSA-rm2p-j3r7-4x4j.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/openclaw/openclaw
75dfb71e4e8b7c2feba5a8ca662f92ea840e0147 Other https://github.com/openclaw/openclaw/commit/75dfb71e4e8b7c2feba5a8ca662f92ea840e0147
aedf62ac7e669a89c7b299201bf6537dc6b12e0e Other https://github.com/openclaw/openclaw/commit/aedf62ac7e669a89c7b299201bf6537dc6b12e0e
CVE-2026-32899 https://nvd.nist.gov/vuln/detail/CVE-2026-32899
GHSA-rm2p-j3r7-4x4j Advisory https://github.com/openclaw/openclaw/security/advisories/GHSA-rm2p-j3r7-4x4j
openclaw-sender-policy-bypass-in-slack-reaction-and-pin-event-handlers Advisory https://www.vulncheck.com/advisories/openclaw-sender-policy-bypass-in-slack-reaction-and-pin-event-handlers
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-rm2p-j3r7-4x4j/GHSA-rm2p-j3r7-4x4j.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
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 Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-rm2p-j3r7-4x4j/GHSA-rm2p-j3r7-4x4j.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-03-21T03:37:19Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/32xxx/CVE-2026-32899.json

Source Advisory: vulnrichment/CVE-2026-32899

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]