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GHSA-mr34-9552-qr95

MediumCVSS 5.8 / 10
Published Apr 17, 2026·Last modified May 8, 2026
Affected Components(0)

No affected components available

Description

Summary

Webchat tool-result media normalization could pass local and UNC-style file paths into the host-side media embedding path without applying the configured local-root containment policy.

Impact

A crafted tool-result media reference could cause the host to attempt local file reads or Windows UNC/network path access while preparing webchat media blocks. This could disclose allowed host files or trigger network credential exposure on affected Windows deployments. Severity remains medium because exploitation depends on a tool-result media path reaching the webchat embedding path, but the sink is a host-side file read before the user sees the rendered result.

Affected versions

  • Affected: >= 2026.4.7, < 2026.4.15
  • Patched: 2026.4.15

Fix

OpenClaw 2026.4.15 hardens the webchat media path and the shared media resolver. Remote-host file:// URLs and Windows network paths are rejected before filesystem access, and audio embedding now enforces configured localRoots containment before stat or read operations.

Verified in v2026.4.15:

  • src/gateway/server-methods/chat-webchat-media.ts uses safe file-URL parsing, rejects Windows network paths, and calls assertLocalMediaAllowed before probing local audio files.
  • src/media/web-media.ts rejects remote-host file:// URLs, Windows network paths, and local-root bypasses on the shared media path.
  • src/gateway/server-methods/chat-webchat-media.test.ts covers both remote-host file:// rejection and local-root denial before filesystem access.

Fix commits included in v2026.4.15 and absent from v2026.4.14:

  • 1470de5d3e0970856d86cd99336bb8ada3fe87da via PR #67293
  • 6e58f1f9f54bca1fea1268ec0ee4c01a2af03dde via PR #67298
  • 52ef42302ead9e183e6c8810e0a04ee4ef8ae9fc via PR #67303 as defense-in-depth for trusted media passthrough anchoring

Thanks to @Kherrisan for reporting this issue.

Risk Scores
Base Score
5.8

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. There is a low impact on the confidentiality of the information.

Threat Intelligence
5.3

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.26%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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