Vulnerability-Lookup

GHSA-844J-XRRQ-WGH4

Vulnerability from github – Published: 2026-03-26 21:42 – Updated: 2026-04-10 19:43

Summary

OpenClaw: Forwarding header spoofing bypasses gateway.trustedProxies origin detection

Details

Summary

When gateway.trustedProxies was configured, spoofed loopback hops in forwarding headers could be accepted as the client origin and weaken downstream auth and rate-limit decisions.

Affected Packages / Versions

Package: openclaw (npm)
Affected: < 2026.3.22
Fixed: >= 2026.3.22
Latest released tag checked: v2026.3.23-2 (630f1479c44f78484dfa21bb407cbe6f171dac87)
Latest published npm version checked: 2026.3.23-2

Fix Commit(s)

fc2d29ea926f47c428c556e92ec981441228d2a4

Release Status

The fix shipped in v2026.3.22 and remains present in v2026.3.23 and v2026.3.23-2.

Code-Level Confirmation

src/gateway/net.ts now ignores loopback forwarded hops before trusted-proxy client resolution.
That shipped origin fix is the one consumed by canvas auth and gateway auth-rate-limit paths that rely on resolved client identity.

OpenClaw thanks @lintsinghua for reporting.

Severity ?

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.22"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35656"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-290"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-26T21:42:30Z",
    "nvd_published_at": "2026-04-10T17:17:06Z",
    "severity": "MODERATE"
  },
  "details": "## Summary\nWhen gateway.trustedProxies was configured, spoofed loopback hops in forwarding headers could be accepted as the client origin and weaken downstream auth and rate-limit decisions.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: \u003c 2026.3.22\n- Fixed: \u003e= 2026.3.22\n- Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`)\n- Latest published npm version checked: `2026.3.23-2`\n\n## Fix Commit(s)\n- `fc2d29ea926f47c428c556e92ec981441228d2a4`\n\n## Release Status\nThe fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`.\n\n## Code-Level Confirmation\n- src/gateway/net.ts now ignores loopback forwarded hops before trusted-proxy client resolution.\n- That shipped origin fix is the one consumed by canvas auth and gateway auth-rate-limit paths that rely on resolved client identity.\n\nOpenClaw thanks @lintsinghua for reporting.",
  "id": "GHSA-844j-xrrq-wgh4",
  "modified": "2026-04-10T19:43:21Z",
  "published": "2026-03-26T21:42:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-844j-xrrq-wgh4"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35656"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/commit/fc2d29ea926f47c428c556e92ec981441228d2a4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/openclaw-xff-loopback-spoofing-bypass-in-canvas-authentication-and-rate-limiter"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenClaw: Forwarding header spoofing bypasses gateway.trustedProxies origin detection"
}

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

Vulnerability from cvelistv5 – Published: 2026-04-10 16:03 – Updated: 2026-04-10 18:23 X_Open Source

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

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

VulnCheck

References

URL

Tags

	https://github.com/openclaw/openclaw/security/adv…	third-party-advisory
	https://github.com/openclaw/openclaw/commit/630f1…	patch
	https://github.com/openclaw/openclaw/commit/fc2d2…	patch
	https://www.vulncheck.com/advisories/openclaw-xff…	third-party-advisory

Impacted products

	Vendor	Product	Version
	OpenClaw	OpenClaw	Affected: 0 , < 2026.3.22 (semver) Unaffected: 2026.3.22 (semver)

Date Public ?

2026-03-24 00:00

Credits

lintsinghua

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-844J-XRRQ-WGH4

Summary

Affected Packages / Versions

Fix Commit(s)

Release Status

Code-Level Confirmation

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

Tags

Sightings

Nomenclature