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

Severity: high (CVSS 8.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-16 · updated 2026-10-25
Weakness: CWE-290

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.

Affected products

OpenClaw: before 2026.5.3 — fixed in 2026.5.3

How to fix

Upgrade to a fixed version: OpenClaw 2026.5.3. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-8c59-hr4w-qg69
https://www.vulncheck.com/advisories/openclaw-mutable-display-name-binding-in-zalo-allowfrom-policy

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