Vulnerability-Lookup

GHSA-XH72-V6V9-MWHC

Vulnerability from github – Published: 2026-04-17 22:32 – Updated: 2026-05-12 13:35

Summary

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

Details

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.

Severity

9.8 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

9.2 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.4.15"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44109"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1188",
      "CWE-287",
      "CWE-294"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-17T22:32:47Z",
    "nvd_published_at": null,
    "severity": "CRITICAL"
  },
  "details": "## Summary\n\nFeishu 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.\n\n## Impact\n\nA 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.\n\n## Affected versions\n\n- Affected: `\u003c 2026.4.15`\n- Patched: `2026.4.15`\n\n## Fix\n\nOpenClaw `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.\n\nVerified in `v2026.4.15`:\n\n- `extensions/feishu/src/monitor.transport.ts` returns invalid when `encryptKey` is missing, refuses webhook mode without `encryptKey`, and rejects invalid signatures before JSON handling.\n- `extensions/feishu/src/card-action.ts` rejects blank callback tokens in the card-action lifecycle guard.\n- `extensions/feishu/src/monitor.webhook-security.test.ts` covers missing-`encryptKey` startup and transport rejection.\n- `extensions/feishu/src/monitor.card-action.lifecycle.test.ts` covers malformed blank-token card actions being dropped before handler dispatch.\n\nFix commit included in `v2026.4.15` and absent from `v2026.4.14`:\n\n- `c8003f1b33ed2924be5f62131bd28742c5a41aae` via PR #66707\n\nThanks to @dhyabi2 for reporting this issue.",
  "id": "GHSA-xh72-v6v9-mwhc",
  "modified": "2026-05-12T13:35:35Z",
  "published": "2026-04-17T22:32:47Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-xh72-v6v9-mwhc"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44109"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/pull/66707"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/c8003f1b33ed2924be5f62131bd28742c5a41aae"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-authentication-bypass-in-feishu-webhook-and-card-action-validation"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw: Feishu webhook and card-action validation now fail closed"
}

CVE-2026-44109 (GCVE-0-2026-44109)

Vulnerability from cvelistv5 – Published: 2026-05-06 19:49 – Updated: 2026-05-07 12:35 X_Open Source

Title

OpenClaw < 2026.4.15 - Authentication Bypass in Feishu Webhook and Card-Action Validation

Summary

OpenClaw before 2026.4.15 contains an authentication bypass vulnerability in Feishu webhook and card-action validation that allows unauthenticated requests to reach command dispatch. Missing encryptKey configuration and blank callback tokens fail open instead of rejecting requests, enabling attackers to bypass signature verification and replay protection to execute arbitrary commands.

Severity

9.2 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-07 12:34 UTC

CWE

CWE-1188 - Initialization of a Resource with an Insecure Default

Assigner

VulnCheck mitre root

References

3 references

URL	Tags
https://github.com/openclaw/openclaw/security/adv…	vendor-advisory
https://github.com/openclaw/openclaw/commit/c8003…	patch
https://www.vulncheck.com/advisories/openclaw-aut…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
OpenClaw	OpenClaw	Affected: 0 , < 2026.4.15 (semver) Unaffected: 2026.4.15 (semver) cpe:2.3:a:openclaw:openclaw::::::node.js::*

Date Public

2026-04-16 00:00

Credits

dhyabi2

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

GHSA-XH72-V6V9-MWHC

Summary

Impact

Affected versions

Fix

CVE-2026-44109 (GCVE-0-2026-44109)

Tags

Sightings

Nomenclature

Related by attack behaviour