CVE-2026-44109: OpenClaw Feishu Webhook And Card-action Validation Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xh72-v6v9-mwhc",
  "modified" : "2026-05-12T13:35:35Z",
  "published" : "2026-04-17T22:32:47Z",
  "aliases" : [ "CVE-2026-44109" ],
  "summary" : "OpenClaw: Feishu webhook and card-action validation now fail closed",
  "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: `< 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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
  }, {
    "type" : "CVSS_V4",
    "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.4.15"
      } ]
    } ]
  } ],
  "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"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1188", "CWE-287", "CWE-294" ],
    "severity" : "CRITICAL",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-04-17T22:32:47Z",
    "nvd_published_at" : null
  }
}