OpenClaw: Slack allowFrom could bind to mutable display names
Affects openclawSource GCVE Database
CVSS 8.6 High : upgrade to 2026.5.3 soon.
Data as of 2 Jul 2026, 23:20 UTC
- Patch
- Available – fixed in 2026.5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NWhat to do
Upgrade openclaw to 2026.5.3.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npmopenclaw | Affected
| Fixed in
|
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AI-suggested
A fix is available in OpenClaw version 2026.5.3. Until patched, operators should use stable Slack user IDs in allowlists instead of display names. Additional mitigations include keeping channel and tool allowlists narrow, avoiding sharing a Gateway between mutually untrusted users, and disabling the affected Slack allowFrom feature when it is not required.
Description
OpenClaw's Slack allowFrom feature could bind to mutable display names, allowing a Slack account that can change its display name metadata to match a policy entry incorrectly. This vulnerability affects versions prior to 2026.5.3. The issue does not alter OpenClaw's trusted-operator model but may allow agent access intended for another Slack identity if the feature is enabled and reachable. The vulnerability is rated high severity. Mitigations include using stable Slack user IDs in allowlists until patched, narrowing channel and tool allowlists, avoiding sharing a Gateway between untrusted users, and disabling the affected feature when not needed.