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CVSS 9.13 sources verified·1 min read
By Lyrie Threat Intelligence·6/16/2026

CRITICAL: CVE-2026-45389 (CVSS 9.1) — multiple products

CVE: CVE-2026-45389

CVSS: 9.1 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: CRITICAL

Status: Critical advisory

Affected

_See vendor advisory_

Summary

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).

Verified Sources

References

  • https://osv.dev/vulnerability/OSEC-2026-07
  • https://osv.dev/vulnerability/OSEC-2026-07

_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._

Lyrie Verdict

A vulnerability of this severity is exactly what Lyrie's anti-rogue-AI defense is built for: continuous, autonomous monitoring that doesn't wait for human reaction time.

#critical

Validated sources

  1. [1]NVD
  2. [2]GitHub Advisory
  3. [3]MITRE

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