{"id":"GHSA-xh72-v6v9-mwhc","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: `\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.","aliases":["CVE-2026-44109"],"modified":"2026-05-12T17:11:26.964514Z","published":"2026-04-17T22:32:47Z","database_specific":{"nvd_published_at":null,"cwe_ids":["CWE-1188","CWE-287","CWE-294"],"severity":"CRITICAL","github_reviewed":true,"github_reviewed_at":"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"}],"affected":[{"package":{"name":"openclaw","ecosystem":"npm","purl":"pkg:npm/openclaw"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.4.15"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-xh72-v6v9-mwhc/GHSA-xh72-v6v9-mwhc.json"}}],"schema_version":"1.9.0","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"}]}