CVE-2012-5823

Open Source Classifieds does not verify that the server hostname matches a domain name in the subject's Common Name CN or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to use of the PHP...

CVE-2012-5811

The Breezy application for Android does not verify that the server hostname matches a domain name in the subject's Common Name CN or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate...

CVE-2012-5805

The PayPal IPN functionality in Zen Cart does not verify that the server hostname matches a domain name in the subject's Common Name CN or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, a different...

CVE-2012-5798

The PayPal Pro PayFlow EC module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name CN or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate...

CVE-2013-0945

EMC Avamar Client before 6.1.101-89 does not verify that the server hostname matches a domain name in the subject's Common Name CN or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate...

CVE-2011-5239

CiviCRM 4.0.5 and 4.1.1 does not verify that the server hostname matches a domain name in the subject's Common Name CN or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate...

CVE-2011-5237

PayPal WPS ToolKit does not verify that the server hostname matches a domain name in the subject's Common Name CN or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate...

CVE-2016-10932

An issue was discovered in the hyper crate before 0.9.4 for Rust on Windows. There is an HTTPS man-in-the-middle vulnerability because hostname verification was omitted...

Improper Certificate Validation

JRuby-OpenSSL is vulnerable to Improper Certificate Validation. The vulnerability is due to missing hostname verification due to failure to ensure that the hostname in the SSL certificate matches the intended connection target, allowing man-in-the-middle attacks with a valid certificate for a...

BIT-LOGSTASH-2025-37730 Logstash Improper Certificate Validation in TCP output

Improper certificate validation in Logstash's TCP output could lead to a man-in-the-middle MitM attack in “client” mode, as hostname verification in TCP output was not being performed when the sslverificationmode = full was set...

GHSA-72QJ-48G4-5XGX JRuby-OpenSSL has hostname verification disabled by default

Summary When verifying SSL certificates, jruby-openssl is not verifying that the hostname presented in the certificate matches the one we are trying to connect to, meaning a MITM could just present any valid cert for a completely different domain they own, and JRuby wouldn't complain. Details n/a...

JRuby-OpenSSL has hostname verification disabled by default

Summary When verifying SSL certificates, jruby-openssl is not verifying that the hostname presented in the certificate matches the one we are trying to connect to, meaning a MITM could just present any valid cert for a completely different domain they own, and JRuby wouldn't complain. Details n/a...

CVE-2025-46551

JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1, when verifying SSL certificates,...

UBUNTU-CVE-2025-46551

JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1, when verifying SSL certificates,...

CVE-2025-46551

JRuby-OpenSSL (JRuby OpenSSL gem) prior to 0.15.4 fails hostname verification when validating SSL certificates, enabling MITM risk for HTTPS requests to external APIs or web scraping. The affected range is 0.12.1 up to, but not including, 0.15.4 (aligned with JRuby 9.3.4.0–9.4.12.1 and 10.0.0.0–1...

CVE-2025-46551 JRuby-OpenSSL has hostname verification disabled by default

JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1, when verifying SSL certificates,...

CVE-2025-46551 JRuby-OpenSSL has hostname verification disabled by default

JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1, when verifying SSL certificates,...

CVE-2025-46551

JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1, when verifying SSL certificates,...

CVE-2025-46551 JRuby-OpenSSL has hostname verification disabled by default

JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1, when verifying SSL certificates,...

JRuby-OpenSSL has hostname verification disabled by default

JRuby-OpenSSL is an add-on gem for JRuby that emulates the Ruby OpenSSL native library. Starting in JRuby-OpenSSL version 0.12.1 and prior to version 0.15.4 corresponding to JRuby versions starting in 9.3.4.0 prior to 9.4.12.1 and 10.0.0.0 prior to 10.0.0.1, when verifying SSL certificates,...