CVE-2026-42436 | THREATINT

Description

OpenClaw before 2026.4.14 contains an improper access control vulnerability in browser snapshot, screenshot, and tab routes that fail to consistently validate the final browser target after navigation. Authenticated callers can bypass SSRF restrictions to expose internal or disallowed page content by exploiting route-driven navigation without proper policy re-validation.

PUBLISHED Reserved 2026-04-27 | Published 2026-05-05 | Updated 2026-05-06 | Assigner VulnCheck

MEDIUM: 4.9CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

HIGH: 7.7CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Problem types

CWE-862 Missing Authorization

Product status

Default status

unaffected

Any version before 2026.4.14

affected

2026.4.14 (semver)

unaffected

Credits

zsx (@zsxsoft) reporter

KeenSecurityLab coordinator

qclawer tool

References

github.com/...enclaw/security/advisories/GHSA-c4qm-58hj-j6pj (GitHub Security Advisory (GHSA-c4qm-58hj-j6pj)) vendor-advisory

github.com/...ommit/b75ad800a59009fc47eaa3471410f69046150e59 (Patch Commit) patch

www.vulncheck.com/...-browser-snapshot-and-screenshot-routes (VulnCheck Advisory: OpenClaw < 2026.4.14 - Internal Page Content Exposure via Browser Snapshot and Screenshot Routes) third-party-advisory

cve.org (CVE-2026-42436)

nvd.nist.gov (CVE-2026-42436)

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