CVE-2026-42436Network attack vector

Authenticated internal content exposure via post-navigation validation gap

Published May 5, 2026 · Updated May 5, 2026

Improper access control in OpenClaw before 2026.4.14 allows remote authenticated users to expose internal page content through browser routes. Snapshot, screenshot, and tab handlers returned page results without consistently rechecking the final URL against the configured browser SSRF policy after navigation. Access to an authenticated browser-tool surface and a restrictive SSRF configuration are required; the disclosed consequence is exposure of internal or otherwise disallowed page content.

CVSS severity4.9
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in OpenClaw before 2026.4.14 allows remote authenticated users to expose internal page content through browser routes. Snapshot, screenshot, and tab handlers returned page results without consistently rechecking the final URL against the configured browser SSRF policy after navigation. Access to an authenticated browser-tool surface and a restrictive SSRF configuration are required; the disclosed consequence is exposure of internal or otherwise disallowed page content.

The record

CVE
CVE-2026-42436
Published
May 5, 2026
Updated
May 5, 2026
Vendor
OpenClaw Foundation
Product
OpenClaw
Classifications
CWE-862
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 5, 2026CVE publishedPublication date reported by the CVE source.
  2. May 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2026.4.14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenClaw Foundation · OpenClawversion=0 <2026.4.14

Published CVSS scores

4.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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