CVE-2026-53857

Name: CVE-2026-53857
Creator: NVD / NIST
Published: 2026-06-16T19:17:03.18+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 0.22%

Last modified Jun 18, 2026

CVE-2026-53857 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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.. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

8.1/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS 4.0

8.6/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.22%

13.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Openclaw	Openclaw	< 2026.5.3

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-8c59-hr4w-qg69Vendor Advisory
https://www.vulncheck.com/advisories/openclaw-mutable-display-name-binding-in-zalo-allowfrom-policyThird Party Advisory

Timeline

Published: Jun 16, 2026
Last Modified: Jun 18, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-53857?

How severe is CVE-2026-53857?

CVE-2026-53857 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2026-53857?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-53857?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST