Medium severity6.5NVD Advisory· Published Apr 8, 2026· Updated Apr 13, 2026
CVE-2026-40037
CVE-2026-40037
Description
OpenClaw before 2026.3.31 (patched in 2026.4.8) contains a request body replay vulnerability in fetchWithSsrFGuard that allows unsafe request bodies to be resent across cross-origin redirects. Attackers can exploit this by triggering redirects to exfiltrate sensitive request data or headers to unintended origins.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
openclawnpm | < 2026.4.8 | 2026.4.8 |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/openclaw/openclaw/commit/d7c3210cd6f5fdfdc1beff4c9541673e814354d5nvdPatchWEB
- github.com/advisories/GHSA-qx8j-g322-qj6mghsaADVISORY
- github.com/openclaw/openclaw/security/advisories/GHSA-qx8j-g322-qj6mnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-40037ghsaADVISORY
- www.vulncheck.com/advisories/openclaw-unsafe-request-body-replay-via-fetchwithssrfguard-cross-origin-redirectsnvdThird Party AdvisoryWEB
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