Vulnerability DatabaseCVE-2026-28474
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CVE-2026-28474
March 05, 2026
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.
Affected Packages
@openclaw/nextcloud-talk (NPM):
Affected version(s) >=2026.1.29 <2026.2.6
Fix Suggestion:
Update to version 2026.2.6
Related Resources (6)
https://github.com/openclaw/openclaw/commit/6b4b6049b47c3329a7014509594647826669892d
https://github.com/openclaw/openclaw
https://github.com/openclaw/openclaw/security/advisories/GHSA-r5h9-vjqc-hq3r
https://github.com/openclaw/openclaw/releases/tag/v2026.2.3
https://github.com/openclaw/openclaw/commit/660f87278c9f292061e097441e0b10c20d62b31b
https://www.vulncheck.com/advisories/openclaw-nextcloud-talk-allowlist-bypass-via-actorname-display-name-spoofing
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Authentication Bypass by Spoofing
CWE-290
Incorrect Authorization
CWE-863
EPSS
Base Score:
0.05