What is CVE-2026-45389?

CVE-2026-45389 is a critical-severity vulnerability in N/a. CVSS score: 9.1/10. Published 2026-06-15.

How severe is CVE-2026-45389?

Critical severity. CVSS v3 base score is 9.1 out of 10.

Vulnerability in N/a

CVE-2026-45389

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 authenti…

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

N/a — versions n/a

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-45389?: CVE-2026-45389 is a critical-severity vulnerability in N/a. CVSS score: 9.1/10. Published 2026-06-15.
How severe is CVE-2026-45389?: Critical severity. CVSS v3 base score is 9.1 out of 10.