🛡️ GHSA-h97f-6pqj-q452 — openclaw

⚪ Unknown ✅ No Known Exploit CWE-918 OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenClaw has a IPv6 multicast SSRF classifier bypass

Summary

OpenClaw's SSRF IP classifier did not treat IPv6 multicast literals (ff00::/8) as blocked/private-internal. This allowed literal multicast hosts to pass SSRF preflight checks.

Impact

A bypass in address classification existed for IPv6 multicast literals. OpenClaw's network fetch/navigation paths are constrained to HTTP/HTTPS and this was triaged as low-severity defense-in-depth hardening.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.2.24
  • Patched versions: >= 2026.2.25

Technical Details

The IPv6 private/internal range set omitted multicast, so addresses like ff02::1 and ff05::1:3 were not classified as blocked by the shared SSRF classifier.

Fix Commit(s)

  • baf656bc6fd7f83b6033e6dbc2548ec75028641f

Release Process Note

patched_versions is pre-set to the planned next npm release (2026.2.25). Once that release is published on npm, the advisory is published.

OpenClaw thanks @zpbrent for reporting.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. Rated impact: confidentiality none, integrity none, availability none.

Weakness class

GHSA-h97f-6pqj-q452 is classified as CWE-918: Server-Side Request Forgery (SSRF). The server fetches a URL supplied by the caller, which can be pointed at internal systems it alone can reach.

Affected software

GHSA-h97f-6pqj-q452 is recorded against 1 package.

  • openclaw

Timeline and source

Published on 3 March 2026 and last revised on 4 March 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

github.com (Web)
github.com (Web)
github.com (Package)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
CWE CWE-918
Public Exploit ✅ No
Source OSV
Published 2026-03-03
Updated 2026-08-20
Modified 2026-03-04
Fix URL N/A

Affected Packages

Software From version Fixed in
openclaw — —

Similar Threats

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