Medium severity · published Jun 12, 2026
CVE-2026-53824
Mattermost plugin for OpenClaw < 2026.4.24 - Slash Token Revocation Lag via Monitor Refresh Delay
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
OpenClaw before 2026.4.24 contains a token revocation vulnerability allowing callers with revoked slash tokens to continue executing commands during monitor refresh windows. Attackers can exploit stale token acceptance to invoke slash command behavior briefly after token revocation, potentially executing unauthorized actions depending on operator configuration.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.4.24 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-53824
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-53824
Mitigation
https://github.com/openclaw/openclaw/security/advisories/GHSA-4m3v-q747-pc6h
Third Party Advisory
https://www.vulncheck.com/advisories/mattermost-slash-token-revocation-lag-via-monitor-refresh-delay
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