VULNERABILITY INTELLIGENCE
CVE-2026-45389
CVSS score7.4 HIGH
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-06-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Description
In OCaml-TLS before 2.1.0, the server implementation does insufficient checks of the certificate provided by the client (when doing client authentication), which allows impersonation with certificates that are not meant for client authentication (because of KeyUsage and ExtendedKeyUsage).
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-295