{"id":"CVE-2026-43534","aliases":["GHSA-7g8c-cfr3-vqqr"],"url":"https://o3.security/vulnerability/CVE-2026-43534","summary":"OpenClaw < 2026.4.10 - Unsanitized External Input in Agent Hook Events","details":"## Summary\n\nAgent hook events could enqueue trusted system events from unsanitized external input.\n\n## Affected Packages / Versions\n\n- Package: `openclaw`\n- Ecosystem: npm\n- Affected versions: `< 2026.4.10`\n- Patched versions: `>= 2026.4.10`\n\n## Impact\n\nAgent hook dispatch could turn externally supplied hook metadata into trusted system events, allowing untrusted input to enter the agent as higher-trust context.\n\n## Technical Details\n\nThe fix sanitizes hook names and marks agent hook system events as untrusted before enqueueing them.\n\n## Fix\n\nThe issue was fixed in #64372. The first stable tag containing the fix is `v2026.4.10`, and `openclaw@2026.4.14` includes the fix.\n\n## Fix Commit(s)\n\n- `e3a845bde5b54f4f1e742d0a51ba9860f9619b29`\n- PR: #64372\n\n## Release Process Note\n\nUsers should upgrade to `openclaw` 2026.4.10 or newer. The latest npm release, `2026.4.14`, already includes the fix.\n\n## Credits\n\nThanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.","published":"2026-05-05T11:25:06.675Z","modified":"2026-08-12T03:51:26.742493846Z","cvss":null,"epss":{"score":0.0019,"percentile":0.08857,"asOf":"2026-08-12"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.4.10"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/e3a845bde5b54f4f1e742d0a51ba9860f9619b29","label":"openclaw/openclaw@e3a845b"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43534.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-7g8c-cfr3-vqqr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43534"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-unsanitized-external-input-in-agent-hook-events"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/e3a845bde5b54f4f1e742d0a51ba9860f9619b29"},{"type":"WEB","url":"https://github.com/openclaw/openclaw/pull/64372"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:26.742493846Z"}}