OpenClaw versions prior to 2026.2.21 improperly parse the left-most X-Forwarded-For header value when requests originate from configured trusted proxies, allowing attackers to spoof client IP addresses. In proxy chains that append or preserve header values, attackers can inject malicious header content to influence security decisions including authentication rate-limiting and IP-based access controls.
https://www.vulncheck.com/advisories/openclaw-client-ip-spoofing-via-x-forwarded-for-header-parsing
https://github.com/openclaw/openclaw/security/advisories/GHSA-2rgf-hm63-5qph
https://github.com/openclaw/openclaw/commit/8877bfd11ec7760b115b2d0d7500a45da2749747
https://github.com/openclaw/openclaw/commit/07039dc089e51589a213ec0d16f8d6f2cd871fa1
Published: 2026-03-19
Updated: 2026-03-25
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Severity: Medium
Base Score: 6.3
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Severity: Medium
EPSS: 0.00015