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OpenClaw: Feishu webhook reads and parses unauthenticated request bodies before signature validation

Moderate severity GitHub Reviewed Published Mar 26, 2026 in openclaw/openclaw • Updated Mar 29, 2026

Package

npm openclaw (npm)

Affected versions

<= 2026.3.24

Patched versions

2026.3.28

Description

Summary

Feishu webhook reads and parses unauthenticated request bodies before signature validation

Affected Packages / Versions

  • Package: openclaw
  • Affected versions: <= 2026.3.24
  • First patched version: 2026.3.25
  • Latest published npm version at verification time: 2026.3.24

Details

Feishu webhook handling previously parsed JSON before signature validation, which let unauthenticated callers force full JSON parsing work before rejection. Commit 5e8cb22176e9235e224be0bc530699261eb60e53 reads the raw request body, validates the signature first, and only then parses JSON.

Verified vulnerable on tag v2026.3.24 and fixed on main by commit 5e8cb22176e9235e224be0bc530699261eb60e53.

Fix Commit(s)

  • 5e8cb22176e9235e224be0bc530699261eb60e53

References

@steipete steipete published to openclaw/openclaw Mar 26, 2026
Published to the GitHub Advisory Database Mar 29, 2026
Reviewed Mar 29, 2026
Last updated Mar 29, 2026

Severity

Moderate

EPSS score

Weaknesses

Uncontrolled Resource Consumption

The product does not properly control the allocation and maintenance of a limited resource. Learn more on MITRE.

CVE ID

No known CVE

GHSA ID

GHSA-3h52-cx59-c456

Source code

Credits

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