CVE-2026-42436 json
OpenClaw < 2026.4.14 - Internal Page Content Exposure via Browser Snapshot and Screenshot Routes
published 6mo ago modified 4mo ago also EUVD-2026-27255 , GHSA-c4qm-58hj-j6pj
- cvss
- 7.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 18%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- npm openclaw 2026.4.14
- OpenClaw OpenClaw 2026.4.14
- github.com/openclaw/openclaw@b75ad80 commit
- github.com/openclaw/openclaw#66040 pull request
Is CVE-2026-42436 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 6mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 4.9 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N |
| CNA | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| GitHub | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| CNA | 4.0 | 4.9 | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.4.14 |
2026.4.14 |
Affected products
- OpenClaw OpenClaw
Classification
References
-
github.com
/openclaw/openclaw/commit/b75ad800a59009fc47eaa3471410f69046150e59
patch, web
-
github.com
/openclaw/openclaw/pull/66040
web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-c4qm-58hj-j6pj
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-internal-page-content-exposure-via-browser-snapshot-and-screenshot-routes
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-42436
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-42436
- GitHub Advisory GHSA-c4qm-58hj-j6pj
- NVD CVE-2026-42436
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.