# CVE-2026-53857: OpenClaw policy enforcement bypass in Zalo allowFrom policy

Source: https://junglewise.ai/threats/cve-2026-53857-openclaw-policy-enforcement-bypass-in-zalo-allowfrom-policy  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-16. Updated: 2026-06-18  
License: CC BY 4.0 with a link back

CVE-2026-53857 · Severity: high · CVSS 8.1 · Published 2026-06-16

OpenClaw, a gateway for managing Zalo communications, contains a flaw in how it identifies users. An attacker can change their display name to match a trusted user's name, potentially tricking the system into sending them messages or data intended for someone else. This could lead to unauthorized access to private communications or sensitive information.

Technologies: [openclaw (npm)](https://junglewise.ai/threats/technologies/npm-openclaw), [Openclaw](https://junglewise.ai/threats/technologies/openclaw). Vendors: [npm](https://junglewise.ai/threats/vendors/npm), [Openclaw](https://junglewise.ai/threats/vendors/openclaw).

## Quick answers

**Is CVE-2026-53857 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-53857 being exploited in the wild.

**How severe is CVE-2026-53857?** High severity, with a CVSS score of 8.1, published 16 June 2026.

**Which products and versions are affected?** openclaw (npm) SEMVER:introduced=0,fixed=2026.5.3; Openclaw < 2026.5.3, <= 2026.5.2.

**Is there a fix for CVE-2026-53857?** Yes. openclaw (npm): upgrade to 2026.5.3 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-53857 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-53857?** Check whether you run openclaw (npm) or Openclaw at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- openclaw (npm): upgrade to 2026.5.3 or later

  ```sh
  npm install openclaw@2026.5.3
  ```


## Technical details

A vulnerability in OpenClaw's Zalo 'allowFrom' policy implementation allows for authentication bypass via spoofing (CWE-290). The root cause is the system's reliance on mutable display metadata rather than stable, unique identifiers when evaluating access policies. An attacker with a Zalo account can modify their display name to match a name listed in a policy entry, potentially receiving agent responses or data intended for a different identity. This requires the 'allowFrom' feature to be enabled and reachable. The issue is addressed in version 2026.5.3 by prioritizing stable identifiers.

## Affected products

- openclaw openclaw <= 2026.5.2

## Identifiers

- CVE-2026-53857
- GHSA-8c59-hr4w-qg69

## Timeline

- 2026-05-28: disclosed: Initial disclosure by reporter
- 2026-06-18: advisory: GitHub Advisory published
- 2026-05-28: patched: Version 2026.5.3 released

## References

- [https://api.github.com/users/PhilipPhil](https://api.github.com/users/PhilipPhil)
- [https://github.com/PhilipPhil](https://github.com/PhilipPhil)
- [https://api.github.com/users/PhilipPhil/gists%7B/gist_id%7D](https://api.github.com/users/PhilipPhil/gists%7B/gist_id%7D)
- [https://api.github.com/users/PhilipPhil/repos](https://api.github.com/users/PhilipPhil/repos)
- [https://avatars.githubusercontent.com/u/44811794?v=4](https://avatars.githubusercontent.com/u/44811794?v=4)
- [https://api.github.com/users/PhilipPhil/events%7B/privacy%7D](https://api.github.com/users/PhilipPhil/events%7B/privacy%7D)

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