CVE-2026-45388

CVE-2026-45388 affects OCaml-TLS before 2.1.0. The TLS 1.3 client path in handshake_client13.ml did not wire into validate_keyusage, allowing a certificate issued for non-server purposes (e.g., clientAuth, codeSigning, emailProtection) to impersonate a TLS server if the EKU/KeyUsage restrictions ...

CVE-2026-45389

Summary (OCaml-TLS CVE-2026-45389): OCaml-TLS versions before 2.1.0 fail to properly validate KeyUsage and ExtendedKeyUsage on client certificates during mutual TLS, allowing impersonation with certificates intended for server authentication. The issue arises in the server-side certificate valida...

GHSA-9QWG-CRG9-M2VC `openssl` `SubjectAlternativeName` and `ExtendedKeyUsage::other` allow arbitrary file read

SubjectAlternativeName and ExtendedKeyUsage arguments were parsed using the OpenSSL function X509V3EXTnconf. This function parses all input using an OpenSSL mini-language which can perform arbitrary file reads. Thanks to David Benjamin Google for reporting this issue...

RUSTSEC-2023-0023 `openssl` `SubjectAlternativeName` and `ExtendedKeyUsage::other` allow arbitrary file read

SubjectAlternativeName and ExtendedKeyUsage arguments were parsed using the OpenSSL function X509V3EXTnconf. This function parses all input using an OpenSSL mini-language which can perform arbitrary file reads. Thanks to David Benjamin Google for reporting this issue...

`openssl` `SubjectAlternativeName` and `ExtendedKeyUsage::other` allow arbitrary file read

SubjectAlternativeName and ExtendedKeyUsage arguments were parsed using the OpenSSL function X509V3EXTnconf. This function parses all input using an OpenSSL mini-language which can perform arbitrary file reads. Thanks to David Benjamin Google for reporting this issue...

SUSE CVE-2022-21657

Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions Envoy does not restrict the set of certificates it accepts from the peer, either as a TLS client or a TLS server, to only those certificates that contain the necessary extendedKeyUsage...

CVE-2022-21657

A flaw was found in envoy. This issue occurs when it does not restrict the set of certificates it accepts from the peer, either as a TLS client or a TLS server, and only to those certificates that contain the necessary extendedKeyUsage id-kp-serverAuth and id-kp-clientAuth, respectively...