OpenClaw: Browser SSRF policy default allowed private-network navigation

CVE-2026-43527 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

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)

  • 024f4614a1a1831406e763adc40ef226e3d5e9ed
  • 1dabfef28db523e7de81edeb3dd689e9171236a2
  • 213c36cf51121ef6c05cfccd78037371f968f31a
  • 7eecfa411df3d12e6b810e6ca5df47254fc3db3f
  • 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.

Basic information

Type
reviewed
Severity
medium
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2026-04-17 21:58:15 UTC
Updated
2026-05-08 01:32:16 UTC
GitHub reviewed
2026-04-17 21:58:15 UTC
NVD published
2026-05-05

EPSS Score

Score Percentile
0.03% 8.84%

CVSS Scores

Base score Version Severity Vector
7.7 3.1 —
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
6.9 4.0 —
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:N)
No confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:N)
No integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:N)
No availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:L)
Limited confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:L)
Limited integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.

Identifiers

Type Value
GHSA GHSA-53vx-pmqw-863c ↗
CVE CVE-2026-43527 ↗

CWEs

CWE id Name
CWE-918 Server-Side Request Forgery (SSRF)
CWE-1188 Initialization of a Resource with an Insecure Default

Credits

  • dhyabi2 (reporter)

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
npm openclaw < 2026.4.14 2026.4.14 —

References

cvelogic Threat Intelligence