Vulnerability Description
OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display name to match an allowlisted user ID and gain unauthorized access to restricted conversations.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openclaw | Openclaw | < 2026.2.6 |
Related Weaknesses (CWE)
References
- https://github.com/openclaw/openclaw/commit/6b4b6049b47c3329a7014509594647826669Patch
- https://github.com/openclaw/openclaw/security/advisories/GHSA-r5h9-vjqc-hq3rPatchVendor Advisory
- https://www.vulncheck.com/advisories/openclaw-nextcloud-talk-allowlist-bypass-viThird Party AdvisoryBroken Link
FAQ
What is CVE-2026-28474?
CVE-2026-28474 is a vulnerability with a CVSS score of 9.8 (CRITICAL). OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room all...
How severe is CVE-2026-28474?
CVE-2026-28474 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-28474?
Check the references section above for vendor advisories and patch information. Affected products include: Openclaw Openclaw.