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OpenClaw SSRF guard misses four IPv6 special-use ranges

Low severity GitHub Reviewed Published Mar 29, 2026 in openclaw/openclaw • Updated Mar 31, 2026

Package

npm openclaw (npm)

Affected versions

<= 2026.3.24

Patched versions

2026.3.28

Description

Summary

The SSRF/IP classifier treated several IPv6 special-use ranges as public and allowed fetches to proceed.

Impact

An attacker who controlled a fetched URL could target internal or non-routable IPv6 addresses that should have been blocked by the SSRF guard.

Affected Component

src/shared/net/ip.ts, src/infra/net/ssrf.*

Fixed Versions

  • Affected: <= 2026.3.24
  • Patched: >= 2026.3.28
  • Latest stable 2026.3.28 contains the fix.

Fix

Fixed by commit d61f8e5672 (Net: block missing IPv6 special-use ranges).

OpenClaw thanks @nicky-cc of Tencent zhuque Lab https://github.com/Tencent/AI-Infra-Guard for reporting.

References

@steipete steipete published to openclaw/openclaw Mar 29, 2026
Published to the GitHub Advisory Database Mar 31, 2026
Reviewed Mar 31, 2026
Last updated Mar 31, 2026

Severity

Low

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS score

Weaknesses

Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Learn more on MITRE.

CVE ID

No known CVE

GHSA ID

GHSA-g86v-f9qv-rh6m

Source code

Credits

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