CVE-2026-43576 json
OpenClaw < 2026.4.5 - Second-hop SSRF via CDP /json/version WebSocket URL
published 6mo ago modified 4mo ago also GHSA-f7fh-qg34-x2xh , EUVD-2026-28164
- 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 2026.4.5 contains a server-side request forgery vulnerability in the CDP /json/version WebSocket endpoint that allows attackers to pivot to untrusted second-hop targets. The webSocketDebuggerUrl response field is not properly validated, enabling attackers to redirect connections to arbitrary hosts and perform SSRF-style attacks.
Patch / fix
- npm openclaw 2026.4.5
- OpenClaw OpenClaw 2026.4.5
- github.com/openclaw/openclaw@bc356cc commit
- github.com/openclaw/openclaw#60469 pull request
Is CVE-2026-43576 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 |
| 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 |
| GitHub | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.4.5 |
2026.4.5 |
Affected products
- OpenClaw OpenClaw
Classification
References
-
github.com
/openclaw/openclaw/commit/bc356cc8c2beaa747c71dd86cceab8f804699665
patch, web
-
github.com
/openclaw/openclaw/pull/60469
web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-f7fh-qg34-x2xh
vendor-advisory, web, mitigation
-
vulncheck.com
/advisories/openclaw-second-hop-ssrf-via-cdp-json-version-websocket-url
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-43576
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-43576
- GitHub Advisory GHSA-f7fh-qg34-x2xh
- NVD CVE-2026-43576
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.