CVE-2026-43534 json
OpenClaw < 2026.4.10 - Unsanitized External Input in Agent Hook Events
published 6mo ago modified 4mo ago also GHSA-7g8c-cfr3-vqqr , EUVD-2026-27279
- cvss
- 9.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 8%
- public exploits
- 0
- none known
Summary
OpenClaw before 2026.4.10 contains an input validation vulnerability that allows external hook metadata to be enqueued as trusted system events. Attackers can supply malicious hook names to escalate untrusted input into higher-trust agent context.
Patch / fix
- npm openclaw 2026.4.10
- OpenClaw OpenClaw 2026.4.10
- github.com/openclaw/openclaw@e3a845b commit
- github.com/openclaw/openclaw#64372 pull request
Is CVE-2026-43534 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
- yes
- Technical impact
- total
- Assessed
- 6mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/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 |
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | openclaw | <2026.4.10 |
2026.4.10 |
Affected products
- OpenClaw OpenClaw
Classification
References
-
github.com
/openclaw/openclaw/commit/e3a845bde5b54f4f1e742d0a51ba9860f9619b29
patch, web
-
github.com
/openclaw/openclaw/pull/64372
web
-
github.com
/openclaw/openclaw/security/advisories/GHSA-7g8c-cfr3-vqqr
vendor-advisory, web
-
vulncheck.com
/advisories/openclaw-unsanitized-external-input-in-agent-hook-events
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-43534
advisory
-
github.com
/openclaw/openclaw
package
Sources
- CVE List CVE-2026-43534
- GitHub Advisory GHSA-7g8c-cfr3-vqqr
- NVD CVE-2026-43534
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.