Summary
OpenClaw has a IPv6 multicast SSRF classifier bypass
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.
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.
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.
Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside. Typical impact: access to internal metadata services, internal APIs, or cloud credentials.
Affected versions
Security releases
Kodem intelligence
Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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Frequently Asked Questions
- What is GHSA-H97F-6PQJ-Q452? GHSA-H97F-6PQJ-Q452 is a medium-severity server-side request forgery (SSRF) vulnerability in openclaw (npm), affecting versions <= 2026.2.24. It is fixed in 2026.2.25. Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside.
- Which versions of openclaw are affected by GHSA-H97F-6PQJ-Q452? openclaw (npm) versions <= 2026.2.24 is affected.
- Is there a fix for GHSA-H97F-6PQJ-Q452? Yes. GHSA-H97F-6PQJ-Q452 is fixed in 2026.2.25. Upgrade to this version or later.
- Is GHSA-H97F-6PQJ-Q452 exploitable, and should I be worried? Whether GHSA-H97F-6PQJ-Q452 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
- What actually determines whether GHSA-H97F-6PQJ-Q452 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
- How do I fix GHSA-H97F-6PQJ-Q452? Upgrade
openclawto 2026.2.25 or later.