CVE-2026-43527: OpenClaw: Browser SSRF policy default allowed private-network navigation
Summary Browser SSRF policy default allowed private-network navigation. Affected Packages / Versions - Package: openclaw - Ecosystem: npm - Affected versions: = 2026.4.14 Impact Browser SSRF protection could allow private-network navigation by default in paths where restrictive behavior was expected, exposing internal services or metadata endpoints through browser-driven requests.
Published Apr 17, 2026 · Updated May 8, 2026
Affected packages
openclaw
- Ecosystem
- npm
- Affected
- < 2026.4.14
- Fixed in
- 2026.4.14
- Check
npm ls openclaw
Advisory details
From the GitHub Advisory Database (CC BY 4.0).
Summary
Browser SSRF policy default allowed private-network navigation.
Affected Packages / Versions
- Package:
openclaw - Ecosystem: npm
- Affected versions:
< 2026.4.14 - Patched versions:
>= 2026.4.14
Impact
Browser SSRF protection could allow private-network navigation by default in paths where restrictive behavior was expected, exposing internal services or metadata endpoints through browser-driven requests.
Technical Details
The fix preserves strict SSRF configuration semantics, keeps private-network access disabled unless explicitly opted in, and updates loopback CDP readiness handling for the stricter default.
Fix
The issue was fixed in #66354 and #66386. The first stable tag containing the fix is v2026.4.14, and [email protected] includes the fix.
Fix Commit(s)
024f4614a1a1831406e763adc40ef226e3d5e9ed1dabfef28db523e7de81edeb3dd689e9171236a2213c36cf51121ef6c05cfccd78037371f968f31a7eecfa411df3d12e6b810e6ca5df47254fc3db3f- PR: #66354, #66386
Release Process Note
Users should upgrade to openclaw 2026.4.14 or newer. The latest npm release, 2026.4.14, already includes the fix.
Credits
Thanks to @zsxsoft, with sponsorship from @KeenSecurityLab and @qclawer for reporting this issue.
Credited to dhyabi2.
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-53vx-pmqw-863c
- https://github.com/openclaw/openclaw/pull/66354
- https://github.com/openclaw/openclaw/pull/66386
- https://github.com/openclaw/openclaw/commit/024f4614a1a1831406e763adc40ef226e3d5e9ed
- https://github.com/openclaw/openclaw/commit/1dabfef28db523e7de81edeb3dd689e9171236a2
- https://github.com/openclaw/openclaw/commit/213c36cf51121ef6c05cfccd78037371f968f31a
- https://github.com/openclaw/openclaw/commit/7eecfa411df3d12e6b810e6ca5df47254fc3db3f
- https://nvd.nist.gov/vuln/detail/CVE-2026-43527
- https://www.vulncheck.com/advisories/openclaw-server-side-request-forgery-via-private-network-navigation
- https://github.com/advisories/GHSA-53vx-pmqw-863c
How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology
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