OpenClaw has incomplete IPv4 special-use SSRF blocking in web fetch guard
### Summary `isPrivateIpv4()` in bundled SSRF guard code missed several IPv4 special-use/non-global ranges, so `web_fetch` could allow targets that should be blocked by SSRF policy. ### Affected Packages / Versions - Package: `openclaw` (npm) - Latest published affected version: `2026.2.21-2` (published 2026-02-21) - Structured vulnerable range: `<= 2026.2.21-2` - Planned patched version (pre-set): `>= 2026.2.22` ### Impact Low severity. Exploitation requires network reachability to the relevant special-use ranges and a request path that reaches `web_fetch` URL fetching. ### Technical Details Affected releases used narrow IPv4 private-range checks that omitted multiple RFC special-use/non-global ranges. This allowed requests such as `http://198.18.0.1/...` through SSRF validation in affected releases. Follow-up hardening consolidates local-host/tailnet range checks so gateway/browser/tailnet paths share one canonical IP classification flow. ### Fix Commit(s) - `71bd15bb4294d3d1b54386064d69cd0f5f731bd8` - `44dfbd23df453e51b71ef79a148c28c53e89168c` - `333fbb86347998526dd514290adfd5f727caa6d9` - `f14ebd743cfc73f667fae80af70043d0ab1f88bd` OpenClaw thanks @princeeismond-dot for reporting.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-32019US | medium5.3 | — | ||
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 p… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/openclaw/openclawPACKAGE
- https://github.com/openclaw/openclaw/commit/333fbb86347998526dd514290adfd5f727caa6d9WEB
- https://github.com/openclaw/openclaw/commit/44dfbd23df453e51b71ef79a148c28c53e89168cWEB
- https://github.com/openclaw/openclaw/commit/71bd15bb4294d3d1b54386064d69cd0f5f731bd8WEB
- https://github.com/openclaw/openclaw/commit/f14ebd743cfc73f667fae80af70043d0ab1f88bdWEB
- https://github.com/openclaw/openclaw/security/advisories/GHSA-4rqq-w8v4-7p47WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-32019ADVISORY
- https://www.vulncheck.com/advisories/openclaw-incomplete-ipv4-special-use-range-blocking-in-ssrf-guardWEB
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