GHSA-4rqq-w8v4-7p47 CVE-2026-32019
OpenClaw has incomplete IPv4 special-use SSRF blocking in web fetch guard
- Severity
- 0.0 / 10
- Medium · CVSS 4.0
- Exploit chance (EPSS)
- 0.21%
- Chance of exploitation in the next 30 days. Higher than 11.81% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-918 Server-Side Request Forgery (SSRF)
- Fix
2026.2.22- Upgrade openclaw to this version or later
Description
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)
71bd15bb4294d3d1b54386064d69cd0f5f731bd844dfbd23df453e51b71ef79a148c28c53e89168c333fbb86347998526dd514290adfd5f727caa6d9f14ebd743cfc73f667fae80af70043d0ab1f88bd
OpenClaw thanks @princeeismond-dot for reporting.
Affected versions
npm
| Package | Vulnerable | Fixed in |
|---|---|---|
| openclaw | < 2026.2.22 |
2026.2.22 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
openclaw npm → 2026.2.22
- npm
npm install openclaw@2026.2.22- yarn
yarn add openclaw@2026.2.22- pnpm
pnpm add openclaw@2026.2.22
Severity breakdown
CVSS 4.0 0.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
- Attack vector
- Network
- Attack complexity
- Low
- Attack requirements
- None
- Privileges required
- None
- User interaction
- None
- Confidentiality (vulnerable system)
- None
- Integrity (vulnerable system)
- Low
- Availability (vulnerable system)
- None
- Confidentiality (subsequent systems)
- None
- Integrity (subsequent systems)
- None
- Availability (subsequent systems)
- None
CVSS 3.1 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Weakness
CWE-918: Server-Side Request Forgery (SSRF)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
References
Advisories
Packages
Other links
- github.com/openclaw/openclaw/security/advisories/GHSA-4rqq-w8v4-7p47
- github.com/openclaw/openclaw/commit/333fbb86347998526dd514290adfd5f727caa6d9
- github.com/openclaw/openclaw/commit/44dfbd23df453e51b71ef79a148c28c53e89168c
- github.com/openclaw/openclaw/commit/71bd15bb4294d3d1b54386064d69cd0f5f731bd8
- github.com/openclaw/openclaw/commit/f14ebd743cfc73f667fae80af70043d0ab1f88bd
- vulncheck.com/advisories/openclaw-incomplete-ipv4-special-use-range-blocking-in-ss…
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-3x84-qq85-fj65 OpenClaw: Browser CDP discovery could accept blocked WebSocket URLs | High | Also affects openclaw |
| GHSA-9c3v-684m-579c OpenClaw MCP SSE redirects could forward Authorization headers | Medium | Also affects openclaw |
| GHSA-f397-5vjw-v2c2 OpenClaw: Shell inline-command parsing could miss an allowlist check | High | Also affects openclaw |
| GHSA-rx78-29qr-5hq8 OpenClaw: Workspace-derived service PATH could influence trash command selection | High | Also affects openclaw |
| GHSA-ccwh-wwpp-6wg5 OpenClaw: Host environment sanitizer missed two Node.js control variables | High | Also affects openclaw |
| GHSA-985f-72mj-8gf7 OpenClaw: Tool group policy callers could accept unvalidated group IDs | Medium | Also affects openclaw |
| GHSA-9v8j-9c9g-w66c OpenClaw: Bootstrap token replay could widen pending pairing scopes | Medium | Also affects openclaw |
| GHSA-c226-q6fx-6j6c OpenClaw: macOS Swift exec allowlist missed combined POSIX inline flags | Medium | Also affects openclaw |
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