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Description

OpenClaw versions prior to 2026.2.22 contain incomplete IPv4 special-use range validation in the isPrivateIpv4() function, allowing requests to RFC-reserved ranges to bypass SSRF policy checks. Attackers with network reachability to special-use IPv4 ranges can exploit web_fetch functionality to access blocked addresses such as 198.18.0.0/15 and other non-global ranges.

PUBLISHED Reserved 2026-03-10 | Published 2026-03-19 | Updated 2026-03-25 | Assigner VulnCheck




LOW: 2.3CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L

HIGH: 7.4CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Problem types

CWE-918 Server-Side Request Forgery (SSRF)

Product status

Default status
unaffected

Any version before 2026.2.22
affected

2026.2.22 (semver)
unaffected

Credits

princeeismond-dot reporter

References

github.com/...enclaw/security/advisories/GHSA-4rqq-w8v4-7p47 (GitHub Security Advisory (GHSA-4rqq-w8v4-7p47)) third-party-advisory

github.com/...ommit/71bd15bb4294d3d1b54386064d69cd0f5f731bd8 (Patch Commit #1) patch

github.com/...ommit/44dfbd23df453e51b71ef79a148c28c53e89168c (Patch Commit #2) patch

github.com/...ommit/333fbb86347998526dd514290adfd5f727caa6d9 (Patch Commit #3) patch

github.com/...ommit/f14ebd743cfc73f667fae80af70043d0ab1f88bd (Patch Commit #4) patch

www.vulncheck.com/...pecial-use-range-blocking-in-ssrf-guard (VulnCheck Advisory: OpenClaw < 2026.2.22 - Incomplete IPv4 Special-Use Range Blocking in SSRF Guard) third-party-advisory

cve.org (CVE-2026-32019)

nvd.nist.gov (CVE-2026-32019)

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