PT-2026-31967 · Openclaw · Openclaw

Lintsinghua · Published 2026-04-10 · Updated 2026-04-10 · CVE-2026-35656

Mitre

CVSS v3.1

6.5

Medium

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

OpenClaw before 2026.3.22 contains an authentication bypass vulnerability in the X-Forwarded-For header processing when trustedProxies is configured, allowing attackers to spoof loopback hops. Remote attackers can inject forged forwarding headers to bypass canvas authentication and rate-limiting protections by masquerading as loopback clients.

Fix

Authentication Bypass by Spoofing

Weakness Enumeration

CWE-290

Related Identifiers

CVE-2026-35656

Affected Products

Openclaw

References · 5

• https://github.com/openclaw/openclaw/commit/fc2d29ea926f47c428c556e92ec981441228d2a4 · Patch
• https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-35656 · Security Note
• https://github.com/openclaw/openclaw/security/advisories/GHSA-844j-xrrq-wgh4 · Note
• https://vulncheck.com/advisories/openclaw-xff-loopback-spoofing-bypass-in-canvas-authentication-and-rate-limiter · Note