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

What is CVE-2026-28474?

CVE-2026-28474 is a critical authentication bypass vulnerability in Openclaw Openclaw, published on 5 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-863

Which versions are affected by CVE-2026-28474?

2 open source packages ship an affected version, including @openclaw/nextcloud-talk. It affects 1 product.

Products include Openclaw Openclaw.

How do I fix CVE-2026-28474?

Upgrade @openclaw/nextcloud-talk to 2026.2.6 or later.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2026-28474 being exploited?

There is no known exploitation of CVE-2026-28474 in the wild and no public exploit code.

Other vulnerabilities in Openclaw Openclaw

• CVE-2026-28363 Security feature bypass in OpenClaw Critical 9.9
• CVE-2026-30741 Code injection in n/a Critical 9.8
• CVE-2026-33579 OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval Critical 9.4
• CVE-2026-32922 OpenClaw < 2026.3.11 - Privilege Escalation via Unvalidated Scope in device.token.rotate Critical 9.4
• CVE-2026-32978 OpenClaw < 2026.3.11 - Approval Bypass via Unrecognized Script Runners Critical 9.4

All Openclaw Openclaw vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-r5h9-vjqc-hq3r.