CVE-2026-32913: OpenClaw < 2026.3.7 - Custom Authorization Header Leakage via Cross-Origin Redirects

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-23 · updated 2026-06-17
Weakness: CWE-522

Description

OpenClaw before 2026.3.7 contains an improper header validation vulnerability in fetchWithSsrFGuard that forwards custom authorization headers across cross-origin redirects. Attackers can trigger redirects to different origins to intercept sensitive headers like X-Api-Key and Private-Token intended for the original destination.

Affected products

OpenClaw: before 2026.3.7 — fixed in 2026.3.7

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.7. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/commit/46715371b0612a6f9114dffd1466941ac476cef5
https://github.com/openclaw/openclaw/security/advisories/GHSA-6mgf-v5j7-45cr
https://vulncheck.com/advisories/openclaw-mar-custom-authorization-header-leakage-via-cross-origin-redirects

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