Vulnerability · Published Jun 16, 2026 · Assigned by VulnCheck

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

High 8.1

In plain English

A high-severity authentication bypass by spoofing in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.2%top 86.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.5.3	GHSA-8c59-hr4w-qg69

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.5.3

Weakness: CWE-290 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

GitHub Security Advisory (GHSA-8c59-hr4w-qg69) vendor-advisory
VulnCheck Advisory: OpenClaw < 2026.5.3 - Mutable Display Name Binding in Zalo allowFrom Policy third-party-advisory