CVE Catalog

CVE-2026-28474

CriticalCVSS 9.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.48%

40th percentile - higher than 40% of all known CVEs

Summary

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.

Risk Assessment

An attacker can change their Nextcloud display name to match an allowlisted user ID and gain unauthorized access to restricted conversations.

Recommendation

It is recommended to update the Nextcloud Talk plugin to version 2026.2.6 or newer to mitigate this vulnerability.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS