CVE-2026-53857 OpenClaw < 2026.5.3 - Mutable Display Name Binding in Zalo allowFrom Policy

High 8.6 Published Updated

Attackers can bypass Zalo allowFrom policies by changing display names to receive unauthorized agent responses when the feature is enabled.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-53857?

CVE-2026-53857 is a high-severity authentication bypass vulnerability in Openclaw Openclaw, published on 16 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

OpenClaw before 2026.5.3 contains a policy enforcement vulnerability where Zalo contacts with mutable display metadata could match allowFrom policy entries through display name changes. Attackers with mutable display names could receive agent responses intended for different Zalo identities when the feature is enabled.

Weakness: CWE-290

Which versions are affected by CVE-2026-53857?

2 open source packages ship an affected version, including openclaw. It affects 1 product.

PackageAffectedFixed in
openclaw npmAll versions2026.5.3
openclaw npmAll versions2026.5.3

Products include Openclaw Openclaw.

How do I fix CVE-2026-53857?

Upgrade openclaw to 2026.5.3 or later.

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

Is CVE-2026-53857 being exploited?

There is no known exploitation of CVE-2026-53857 in the wild and no public exploit code.

All Openclaw Openclaw vulnerabilities

Sources

Also known as GHSA-8c59-hr4w-qg69, MINI-hcg6-cv53-6jrh.

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