AI agent vulnerability · OpenClaw

CVE-2026-34426: OpenClaw: Windows media loaders accepted remote-host file URLs before local path validation

mediumCVSS 4.0 5.3GHSA-h3x4-hc5v-v2gm

Summary Windows local-media handling accepted remote-host file URLs and UNC-style paths before local-path validation, so network-hosted file targets could be treated as local content. Affected Packages / Versions - Package: openclaw (npm) - Affected: = 2026.3.22 - Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87) - Latest published npm version checked: 2026.3.23-2 Fix Commit(s) -…

Published Mar 26, 2026 · Updated Apr 10, 2026

Affected packages

openclaw

Ecosystem: npm
Affected: < 2026.3.22
Fixed in: 2026.3.22
Check: npm ls openclaw

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

Summary

Windows local-media handling accepted remote-host file URLs and UNC-style paths before local-path validation, so network-hosted file targets could be treated as local content.

Affected Packages / Versions

Package: openclaw (npm)
Affected: < 2026.3.22
Fixed: >= 2026.3.22
Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87)
Latest published npm version checked: 2026.3.23-2

Fix Commit(s)

4fd7feb0fd4ec16c48ed983980dba79a09b3aaf5
93880717f1cd34feaa45e74e939b7a5256288901

Release Status

The fix shipped in v2026.3.22 and remains present in v2026.3.23 and v2026.3.23-2.

Code-Level Confirmation

src/infra/local-file-access.ts now rejects remote-host file: URLs and UNC/network paths as non-local input.
src/media/web-media.ts, src/media-understanding/attachments.normalize.ts, and src/agents/sandbox-paths.ts all route through the shared local-file guard.

OpenClaw thanks @RacerZ-fighting, @Fushuling for reporting.

Credited to RacerZ-fighting, Fushuling.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

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