🛡️ CVE-2026-42436 — openclaw

🟠 CVSS 7.7 — High ✅ No Known Exploit CWE-862 NVD
7.7
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenClaw: Browser snapshot and screenshot routes could expose internal page content after navigation

Summary

Browser snapshot and screenshot routes could expose internal page content after navigation.

Affected Packages / Versions

  • Package: openclaw
  • Ecosystem: npm
  • Affected versions: < 2026.4.14
  • Patched versions: >= 2026.4.14

Impact

Authenticated browser tool callers could use snapshot, screenshot, or tab routes that did not consistently validate the final browser target after route-driven navigation. In restrictive browser SSRF configurations this could expose content from internal or otherwise disallowed pages.

Technical Details

The fix re-checks browser snapshot, screenshot, and tab route results against the configured browser SSRF policy before returning page content. Regression coverage was added around snapshot/screenshot and tab-route flows.

Fix

The issue was fixed in #66040. The first stable tag containing the fix is v2026.4.14, and [email protected] includes the fix.

Fix Commit(s)

  • b75ad800a59009fc47eaa3471410f69046150e59
  • PR: #66040

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity none, availability none.

Weakness class

CVE-2026-42436 is classified as CWE-862: Missing Authorization. No authorisation check is performed before carrying out a restricted action.

Affected software

CVE-2026-42436 is recorded against 2 packages.

  • openclaw
  • unknown

Timeline and source

Published on 17 April 2026 and last revised on 8 May 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
www.vulncheck.com (Web)

Details

Severity High
CVSS Score 7.7
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CWE CWE-862
Public Exploit ✅ No
Source NVD
Published 2026-04-17
Updated 2026-08-12
Modified 2026-05-08
Fix URL N/A

Affected Packages

Software From version Fixed in
openclaw — —
unknown — —

Similar Threats

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