Critical

OpenClaw: Feishu webhook and card-action validation now fail closed

  • Disclosed: 17.04.2026
  • Updated: 11.10.2026 10:22

Summary

Feishu webhook mode accepted missing encryptKey configuration as valid and blank card-action callback tokens as usable lifecycle tokens. Together, those fail-open paths could allow unauthenticated webhook or card-action traffic to reach command dispatch in affected deployments.

Impact

A deployment using Feishu webhook mode without a configured encryptKey, or handling malformed card-action callbacks with blank callback tokens, could fail open instead of rejecting the request. Severity remains critical because affected webhook deployments expose a network-triggered path into OpenClaw command handling without the expected Feishu signature or replay protection.

Affected versions

  • Affected: < 2026.4.15
  • Patched: 2026.4.15

Fix

OpenClaw 2026.4.15 makes Feishu webhook and card-action validation fail closed. Webhook mode now refuses to start without an encryptKey, missing signing configuration returns invalid instead of valid, invalid signatures return 401, and blank card-action callback tokens are rejected before dispatch.

Verified in v2026.4.15:

  • extensions/feishu/src/monitor.transport.ts returns invalid when encryptKey is missing, refuses webhook mode without encryptKey, and rejects invalid signatures before JSON handling.
  • extensions/feishu/src/card-action.ts rejects blank callback tokens in the card-action lifecycle guard.
  • extensions/feishu/src/monitor.webhook-security.test.ts covers missing-encryptKey startup and transport rejection.
  • extensions/feishu/src/monitor.card-action.lifecycle.test.ts covers malformed blank-token card actions being dropped before handler dispatch.

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

  • c8003f1b33ed2924be5f62131bd28742c5a41aae via PR #66707

Thanks to @dhyabi2 for reporting this issue.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
npm package openclaw < 2026.4.15 2026.4.15

References

CVSS score 9.8/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-1188, CWE-287, CWE-294
Platform
npm
Package
openclaw
Disclosed
17.04.2026
Updated
11.10.2026 10:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-xh72-v6v9-mwhc - CC BY 4.0

Vulnerability history: openclaw

All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (588) in the archive
Total entries
588
First → latest
02.2026 07.2026
Without a fix
9
Exploited in attacks
0

Severity breakdown

  • Critical 20
  • High 215
  • Medium 299
  • Low 54

Disclosures per year

  1. 2026: 588
Severity:
  1. High · 8.8 CVE-2026-53811 < 2026.5.7 2026.5.7
  2. High · 8.8 CVE-2026-53806 < 2026.5.12 2026.5.12
  3. High · 7.8 CVE-2026-53813 < 2026.4.25 2026.4.25
  4. High · 7.5 CVE-2026-53834 < 2026.4.27 2026.4.27
  5. Critical CVE-2026-34507 < 2026.4.29 2026.4.29
  6. High CVE-2026-53823 < 2026.5.3 2026.5.3
  7. High · 8.4 CVE-2026-53814 < 2026.5.20 2026.5.20
  8. High · 6.5 CVE-2026-53815 < 2026.5.19 2026.5.19
  9. High · 8.1 CVE-2026-53849 < 2026.5.7 2026.5.7
  10. High · 8.1 CVE-2026-53857 < 2026.5.3 2026.5.3
  11. High · 8.1 CVE-2026-53866 < 2026.5.12 2026.5.12
  12. High · 8.1 CVE-2026-53864 < 2026.5.26 2026.5.26
  13. OpenClaw: Feishu webhook and card-action validation now fail closed this entry
    Critical · 9.8 CVE-2026-44109 < 2026.4.15 2026.4.15
  14. Critical · 8.1 CVE-2026-43585 < 2026.4.15 2026.4.15
  15. High · 8.8 CVE-2026-43530 >= 2026.2.23, < 2026.4.12 2026.4.12
  16. High · 8.8 CVE-2026-42434 >= 2026.4.5, < 2026.4.10 2026.4.10
  17. High · 7.5 CVE-2026-42437 >= 2026.4.9, < 2026.4.10 2026.4.10
Show more (20) Showing 60 of 235

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