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GHSA-h97f-6pqj-q452
No affected components available
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.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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