MsQuic: Improper Certificate Validation in Microsoft.Native.Quic.MsQuic.OpenSSL

Summary Improper TLS hostname verification allows a man-in-the-middle MITM attack on MsQuic. Details Only MsQuic with the OpenSSL and QuicTLS TLS backends is affected the Schannel backend is not affected. Patches 2.6.1, 2.5.11, and 2.4.20 Impact An on-path attacker could spoof a server identity b...

netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass

A flaw was found in Netty, a network application framework. This vulnerability allows a remote attacker to bypass hostname verification due to improper handling of user-supplied trust managers. When a client is configured with a plain X.509 Trust Manager X509TrustManager, it fails to perform...

netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass

A flaw was found in Netty, a network application framework. This vulnerability allows a remote attacker to bypass hostname verification due to improper handling of user-supplied trust managers. When a client is configured with a plain X.509 Trust Manager X509TrustManager, it fails to perform...

netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass

A flaw was found in Netty, a network application framework. This vulnerability allows a remote attacker to bypass hostname verification due to improper handling of user-supplied trust managers. When a client is configured with a plain X.509 Trust Manager X509TrustManager, it fails to perform...

CVE-2025-46408

CVE-2025-46408 Improper Hostname Verification in EagleEyes Lite Android Application 1. Overview Name : EagleEyesLite Version : 2.0.0 Vendor : AVTECH CWE : CWE-297: Improper Validation of Certificate with Host Mismatch CVSS : 9.8 CRITICAL Vector String : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:...

netty-handler: Netty: Improper trust manager handling leads to hostname verification bypass

A flaw was found in Netty, a network application framework. This vulnerability allows a remote attacker to bypass hostname verification due to improper handling of user-supplied trust managers. When a client is configured with a plain X.509 Trust Manager X509TrustManager, it fails to perform...

cve-2026-19553-wrap-bio

abraxaslabs.tech · github.com/abraxas · @abraxasnull · [email protected] · cve-2026-19553-wrap-bio cve-2026-19553-wrap-bio CPython ssl - Python Software Foundation ssl.SSLContext.wrapbio no requería que serverhostname fuera distinto de None cuando checkhostname está establecido. SSLObject...

CVE-2026-19553

ssl.SSLContext.wrapbio didn't require the serverhostname argument to not be None if ssl.SSLContext.checkhostname was set. Due to a missing parameter check in SSLObject, if the serverhostname argument isn't supplied then hostname verification would be silently skipped. This defect could lead to...

UBUNTU-CVE-2026-19553

ssl.SSLContext.wrapbio didn't require the serverhostname argument to not be None if ssl.SSLContext.checkhostname was set. Due to a missing parameter check in SSLObject, if the serverhostname argument isn't supplied then hostname verification would be silently skipped. This defect could lead to...

CVE-2026-102669

The Joyland AI app is vulnerable to a security flaw because it does not verify hostnames . This improper validation of certificates with host mismatches (CWE-297) allows a malicious host to establish a connection or intercept chat messages . No specific exploit information or remediation details ...

EUVD-2026-91028

Joyland AI app does not verify hostnames, allowing a malicious host to connect or intercept chat messages...

BIT-PHP-MIN-2026-91769 TLS Hostname Verification Falls Back to CN After SAN Mismatch

PHP's OpenSSL stream peer verification checks the certificate's subjectAltName entries first and, whenever no entry matches, falls back to the Common Name. RFC 6125 requires the CN to be ignored once the certificate presents any service identity, so a certificate carrying a non-matching DNS SAN w...

BIT-PHP-2026-91769 TLS Hostname Verification Falls Back to CN After SAN Mismatch

PHP's OpenSSL stream peer verification checks the certificate's subjectAltName entries first and, whenever no entry matches, falls back to the Common Name. RFC 6125 requires the CN to be ignored once the certificate presents any service identity, so a certificate carrying a non-matching DNS SAN w...

BIT-LIBPHP-2026-91769 TLS Hostname Verification Falls Back to CN After SAN Mismatch

PHP's OpenSSL stream peer verification checks the certificate's subjectAltName entries first and, whenever no entry matches, falls back to the Common Name. RFC 6125 requires the CN to be ignored once the certificate presents any service identity, so a certificate carrying a non-matching DNS SAN w...

DEBIAN-CVE-2026-19553

ssl.SSLContext.wrapbio didn't require the serverhostname argument to not be None if ssl.SSLContext.checkhostname was set. Due to a missing parameter check in SSLObject, if the serverhostname argument isn't supplied then hostname verification would be silently skipped. This defect could lead to...

AZL-105687 CVE-2026-19553 affecting package python3 3.12.14-2

ssl.SSLContext.wrapbio didn't require the serverhostname argument to not be None if ssl.SSLContext.checkhostname was set. Due to a missing parameter check in SSLObject, if the serverhostname argument isn't supplied then hostname verification would be silently skipped. This defect could lead to...

AZL-105918 CVE-2026-19553 affecting package tensorflow 2.16.1-11

ssl.SSLContext.wrapbio didn't require the serverhostname argument to not be None if ssl.SSLContext.checkhostname was set. Due to a missing parameter check in SSLObject, if the serverhostname argument isn't supplied then hostname verification would be silently skipped. This defect could lead to...

CVE-2026-19553

ssl.SSLContext.wrapbio didn't require the serverhostname argument to not be None if ssl.SSLContext.checkhostname was set. Due to a missing parameter check in SSLObject, if the serverhostname argument isn't supplied then hostname verification would be silently skipped. This defect could lead to...

CVE-2026-19553 SSLContext.wrap_bio() missing validation of server_hostname parameter

ssl.SSLContext.wrapbio didn't require the serverhostname argument to not be None if ssl.SSLContext.checkhostname was set. Due to a missing parameter check in SSLObject, if the serverhostname argument isn't supplied then hostname verification would be silently skipped. This defect could lead to...

CVE-2026-19553 SSLContext.wrap_bio() missing validation of server_hostname parameter

ssl.SSLContext.wrapbio didn't require the serverhostname argument to not be None if ssl.SSLContext.checkhostname was set. Due to a missing parameter check in SSLObject, if the serverhostname argument isn't supplied then hostname verification would be silently skipped. This defect could lead to...