CVE-2026-28474: OpenClaw Nextcloud Talk < 2026.2.6 - Allowlist Bypass via actor.name Display Name Spoofing

Published Mar 5, 2026
·
Updated

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 Software

2 affected components
OpenClaw Nextcloud Talk<2026.2.6
OpenClaw Openclaw Node.js<2026.2.6

Remediation

Patch Available

https://github.com/openclaw/openclaw/commit/6b4b6049b47c3329a7014509594647826669892d

Patch Available

https://github.com/openclaw/openclaw/security/advisories/GHSA-r5h9-vjqc-hq3r

Event History

Mar 5, 2026
CVE Published
via MITRE·09:59 PM
Data Sourced
via MITRE·09:59 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·10:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-28474?

CVE-2026-28474 has a moderate severity level due to its potential for allowlist bypass.

2

How do I fix CVE-2026-28474?

To fix CVE-2026-28474, upgrade OpenClaw Nextcloud Talk to version 2026.2.6 or later.

3

What does CVE-2026-28474 impact?

CVE-2026-28474 impacts OpenClaw Nextcloud Talk plugin versions prior to 2026.2.6.

4

What vulnerability does CVE-2026-28474 address?

CVE-2026-28474 addresses an allowlist bypass vulnerability through actor.name display name spoofing.

5

Who is affected by CVE-2026-28474?

Users of OpenClaw Nextcloud Talk versions prior to 2026.2.6 are affected by CVE-2026-28474.

Company

Resources

Contact

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