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CVE-2026-45388

9.1 CRITICAL

In OCaml-TLS before 2.1.0, the client implementation does insufficient checks of the certificate provided by the server, which allows imp...

Published: 2026-06-15 · Last updated: 2026-06-16

Severity and scoring

CVSS
9.1 CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CWE
CWE-295

Description

In OCaml-TLS before 2.1.0, the client implementation does insufficient checks of the certificate provided by the server, which allows impersonation with certificates that are not meant for server authentication (because of KeyUsage and ExtendedKeyUsage).

Source: NVD

References

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Same CWE

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