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OpenClaw has Signal group allowlist authorization bypass via DM pairing-store leakage

Low severity GitHub Reviewed Published Feb 26, 2026 in openclaw/openclaw

Package

npm openclaw (npm)

Affected versions

< 2026.2.26

Patched versions

2026.2.26

Description

Summary

In OpenClaw 2026.2.25, Signal group authorization under groupPolicy=allowlist could accept sender identities sourced from DM pairing-store approvals. This allowed DM pairing approvals to leak into group allowlist evaluation.

Impact

This is an authorization-boundary weakness between DM pairing and group allowlist controls. A sender approved for DM pairing could pass group checks without explicit group allowlisting.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Latest published version affected: 2026.2.25
  • Vulnerable range: <= 2026.2.25
  • Patched version (planned next release): >= 2026.2.26

Fix

OpenClaw now keeps DM pairing-store entries DM-only and enforces explicit group allowlist boundaries in shared DM/group policy resolution used by Signal and other channels.

Fix Commit(s)

  • 8bdda7a651c21e98faccdbbd73081e79cffe8be0
  • 64de4b6d6ae81e269ceb4ca16f53cda99ced967a

Release Process Note

patched_versions is pre-set to the planned next release (2026.2.26). After npm publish of that version, this advisory is ready to publish without further content edits.

Thanks @tdjackey for reporting.

References

@steipete steipete published to openclaw/openclaw Feb 26, 2026
Published to the GitHub Advisory Database Mar 2, 2026
Reviewed Mar 2, 2026

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

EPSS score

Weaknesses

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. Learn more on MITRE.

CVE ID

No known CVE

GHSA ID

GHSA-wm8r-w8pf-2v6w

Source code

Credits

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