GHSA-2JRG-RF5X-568G Spring Security Vulnerable to Unauthorized User Impersonation when Using X.509 Client Certificates

Vulnerability in Spring Spring Security. SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user...

CVE-2026-34610

A flaw was found in the leancrypto cryptographic library. A remote attacker can exploit an integer overflow vulnerability in the lcx509extractnamesegment function when processing the Common Name CN field of an X.509 certificate. By crafting a specially designed certificate, an attacker can cause...

Incorrect Permission Assignment for Critical Resource

Overview Affected versions of this package are vulnerable to Incorrect Permission Assignment for Critical Resource due to the virt-api component failing to validate the CN field in client TLS certificates against allowed values in the extension-apiserver-authentication configmap. An attacker can...

CVE-2025-64432

CVE-2025-64432 affects KubeVirt, specifically the virt-api component, where the mTLS authentication flow fails to validate the CN field in client certificates against the extension-apiserver-authentication config, enabling potential RBAC bypass by communicating directly with the aggregated API se...

KubeVirt Affected by an Authentication Bypass in Kubernetes Aggregation Layer

Summary Short summary of the problem. Make the impact and severity as clear as possible. A flawed implementation of the Kubernetes aggregation layer's authentication flow could enable bypassing RBAC controls. Details Give all details on the vulnerability. Pointing to the incriminated source code ...

SUSE CVE-2007-5162

The connect method in lib/net/http.rb in the 1 Net::HTTP and 2 Net::HTTPS libraries in Ruby 1.8.5 and 1.8.6 does not verify that the commonName CN field in a server certificate matches the domain name in an HTTPS request, which makes it easier for remote attackers to intercept SSL transmissions v...

SUSE CVE-2009-2404

Heap-based buffer overflow in a regular-expression parser in Mozilla Network Security Services NSS before 3.12.3, as used in Firefox, Thunderbird, SeaMonkey, Evolution, Pidgin, and AOL Instant Messenger AIM, allows remote SSL servers to cause a denial of service application crash or possibly...

CXF: SSL hostname verification bypass, incomplete CVE-2012-5783 fix

It was found that the fix for CVE-2012-5783 was incomplete: the code added to check that the server host name matches the domain name in a subject's Common Name CN field in X.509 certificates was flawed. A man-in-the-middle attacker could use this flaw to spoof an SSL server using a specially...

ALPINE-CVE-2014-0139

cURL and libcurl 7.1 before 7.36.0, when using the OpenSSL, axtls, qsossl or gskit libraries for TLS, recognize a wildcard IP address in the subject's Common Name CN field of an X.509 certificate, which might allow man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certifica...

DEBIAN-CVE-2010-1192

libESMTP, probably 1.0.4 and earlier, does not properly handle a '\0' character in a domain name in the subject's Common Name CN field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification...

UBUNTU-CVE-2009-3941

Martin Lambers mpop before 1.0.19, when OpenSSL is used, does not properly handle a '\0' character in a domain name in the 1 subject's Common Name or 2 Subject Alternative Name field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted...

Net: HTTP insufficient verification of SSL certificate

The connect method in lib/net/http.rb in the 1 Net::HTTP and 2 Net::HTTPS libraries in Ruby 1.8.5 and 1.8.6 does not verify that the commonName CN field in a server certificate matches the domain name in an HTTPS request, which makes it easier for remote attackers to intercept SSL transmissions v...