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CVE-2026-35656 (GCVE-0-2026-35656)

Vulnerability from cvelistv5 – Published: 2026-04-10 16:03 – Updated: 2026-06-23 16:16 X_Open Source
VLAI
Title
OpenClaw < 2026.3.22 - XFF Loopback Spoofing Bypass in Canvas Authentication and Rate Limiter
Summary
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.
Severity
6.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-10 18:23 UTC
CWE
  • CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
Vendor Product Version CPE status
OpenClaw OpenClaw Affected: 0 , < 2026.3.22 (semver)
Unaffected: 2026.3.22 (semver)
    cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Create a notification for this product.
Date Public
2026-03-24 00:00
Credits
lintsinghua
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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