Spring Security Vulnerable to Unauthorized User Impersonation when Using X.509 Client Certificates

In Spring Security Web, SubjectDnX509PrincipalExtractor 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-2026-47838 Unauthorized User Impersonation when Using X.509 Client Certificates

SubjectDnX509PrincipalExtractor 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. Affected versions: Spring Security 5.7....

PT-2026-48333

Name of the Vulnerable Software and Affected Versions Spring Security versions 5.7.0 through 5.7.24 Spring Security versions 5.8.0 through 5.8.26 Spring Security versions 6.3.0 through 6.3.17 Spring Security versions 6.4.0 through 6.4.17 Spring Security versions 6.5.0 through 6.5.10 Description T...

CVE-2025-13392

Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager DSM before 7.2.2-72806-5 and 7.3.1-86003-1 7.2.1-69057 is not affected allows remote attackers to bypass authentication with prior knowledge of the distinguished name DN...

Security update for ovmf (important)

openSUSE security update: security update for ovmf ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:20875-1 Rating: important References: bsc1261469 bsc1261476 bsc1261477 bsc1261478 Cross-References: CVE-2026-25833 CVE-2026-25834 CVE-2026-25835...

SUSE-SU-2026:22016-1 Security update for ovmf

This update for ovmf fixes the following issues: - CVE-2026-25833: mbedtls: buffer overflow in the x509inetptonipv6 function bsc1261476. - CVE-2026-25834: mbedtls: client accepts signature algorithm chosen by server even if not advertised in client hello bsc1261477. - CVE-2026-25835: mbedtls: no...

Symfony Vulnerable to Identity Spoofing via Unanchored DN Regex in X509Authenticator

Description X509Authenticator implements client-certificate mTLS authentication: the web server validates the client's certificate against a trusted CA, then passes the certificate's Subject DN Distinguished Name: a string like CN=Alice,O=Example,[email protected] to Symfony via...

GHSA-PH86-P8F6-F9R2 Symfony Vulnerable to Identity Spoofing via Unanchored DN Regex in X509Authenticator

Description X509Authenticator implements client-certificate mTLS authentication: the web server validates the client's certificate against a trusted CA, then passes the certificate's Subject DN Distinguished Name: a string like CN=Alice,O=Example,[email protected] to Symfony via...

CVE-2025-13392

Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager DSM before 7.2.2-72806-5 and 7.3.1-86003-1 7.2.1-69057 is not affected allows remote attackers to bypass authentication with prior knowledge of the distinguished name DN...

CVE-2025-13392

Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager DSM before 7.2.2-72806-5 and 7.3.1-86003-1 7.2.1-69057 is not affected allows remote attackers to bypass authentication with prior knowledge of the distinguished name DN...

CVE-2025-13392

Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager DSM before 7.2.2-72806-5 and 7.3.1-86003-1 7.2.1-69057 is not affected allows remote attackers to bypass authentication with prior knowledge of the distinguished name DN...

CVE-2025-13392

Summary : CVE-2025-13392 affects Synology DiskStation Manager (DSM) via an improper check in the SSO authentication flow, enabling remote authentication bypass with knowledge of a DN. Affected versions : DSM before 7.2.2-72806-5 and 7.3.1-86003-1 (7.2.1-69057 is not affected). Impact : local/remo...

EUVD-2025-209956

Improper check for unusual or exceptional conditions vulnerability in SSO in Synology DiskStation Manager DSM before 7.2.2-72806-5 and 7.3.1-86003-1 7.2.1-69057 is not affected allows remote attackers to bypass authentication with prior knowledge of the distinguished name DN...

Synology DiskStation Manager（DSM） 代码问题漏洞

Synology DiskStation Manager DSM is an operating system developed by Synology Inc. It is used for managing data, files, photos, music, and other information on network storage servers. Versions of DSM prior to 7.2.2.6-72806-5 and 7.3.1.8-86003-1 contained code vulnerabilities. These vulnerabiliti...

PT-2026-44132

Name of the Vulnerable Software and Affected Versions Symfony versions prior to 5.4 Description The X509Authenticator component, which implements client-certificate mTLS authentication, contains a flaw in how it extracts user identifiers from the Subject DN Distinguished Name provided via $...

Astra Linux – Vulnerability in the 389-DS-base

When binding against a DN during authentication, the response from 389-ds-base will differ depending on whether the DN exists or not. This can be exploited by an unauthenticated attacker to check the existence of an entry in the LDAP database...

CVE-2026-41919

CVE-2026-41919 is an LDAP Injection vulnerability in Apache OFBiz caused by improper neutralization of LDAP special elements in DN construction. The issue affects OFBiz versions before 24.09.06. Upgrading to 24.09.06 fixes the vulnerability. The CVE list also notes the potential impact as authent...

PT-2026-42855

Name of the Vulnerable Software and Affected Versions Botan versions prior to 3.12.0 Description Certain patterns of indefinite length encodings in Basic Encoding Rules BER data can cause quadratic behavior in the parser, leading to a denial of service. These BER encodings were accepted even in...

Unity Linux 20.1060e / 20.1070e Security Update: openldap (UTSA-2026-017568)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017568 advisory. A flaw was discovered in OpenLDAP before 2.4.57 leading in an assertion failure in slapd in the X.509 DN parsing in decode.c bernextelement, resulting in denial of...

python-ecdsa DER Parser Security Test Suite

This Python script is a security test and validation suite for the python-ecdsa library, focused on detecting potential DER Distinguished Encoding Rules parsing anomalies that may relate to CVE-2026-33936...