Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-c4qm-58hj-j6pj
Advisory ID github_osv/GHSA-c4qm-58hj-j6pj
Aliases CVE-2026-42436
Summary 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 `openclaw@2026.4.14` 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.
Status Published
Exploitability 0.5
Weighted Severity 6.9
Risk 3.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-862 Missing Authorization
CWE-918 Server-Side Request Forgery (SSRF)
System Score Found at
cvssv3.1 7.7 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-c4qm-58hj-j6pj/GHSA-c4qm-58hj-j6pj.json
cvssv4 6.0 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-c4qm-58hj-j6pj/GHSA-c4qm-58hj-j6pj.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/openclaw/openclaw
https://github.com/openclaw/openclaw/commit/b75ad800a59009fc47eaa3471410f69046150e59
https://github.com/openclaw/openclaw/pull/66040
https://github.com/openclaw/openclaw/security/advisories/GHSA-c4qm-58hj-j6pj
CVE-2026-42436 https://nvd.nist.gov/vuln/detail/CVE-2026-42436
openclaw-internal-page-content-exposure-via-browser-snapshot-and-screenshot-routes Advisory https://www.vulncheck.com/advisories/openclaw-internal-page-content-exposure-via-browser-snapshot-and-screenshot-routes
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-c4qm-58hj-j6pj/GHSA-c4qm-58hj-j6pj.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-c4qm-58hj-j6pj/GHSA-c4qm-58hj-j6pj.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-05-06T14:10:04Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/42xxx/CVE-2026-42436.json

Source Advisory: vulnrichment/CVE-2026-42436

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]