crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

crypto/x509: Incorrect enforcement of email constraints in crypto/x509

A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly...

KLA91299 SB vulnerabilities in Apache Tomcat

Security bypass vulnerabilities were found in Apache Tomcat. Malicious users can exploit these vulnerabilities to bypass security restrictions. Below is a complete list of vulnerabilities: 1. Security vulnerability can be exploited to bypass security restrictions. 2. Security vulnerability in...

Astra Linux – Vulnerability in Tomcat9

An improper authorization vulnerability in Apache Tomcat leads to security constraints that ignore any methods or method omissions configured as part of the constraints. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through...

Astra Linux – Vulnerability in openssl, openssl1.0

ASN.1 strings are internally represented within OpenSSL as an ASN1STRING structure, which contains a buffer for storing the string data and a field for storing the buffer length. This is different from regular C strings, which are represented as a buffer for the string data, terminated with a NUL...

Astra Linux – Vulnerability in libxml2

In libxml2 versions before 2.13.8 and 2.14.x before 2.14.2, there is a issue where xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer under-read. To exploit this vulnerability, a crafted XML document must be validated against an XML schema with certain identity constraints, or a...

Astra Linux – Vulnerability in Tomcat9

Improper authorization vulnerability occurs when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat versions: 11.0.0-M1 through 11.0.21, 10.1.0-M1 through 10.1.54, 9.0.0.M1 through 9.0.117, 8.5.0 through 8.5.100, and 7.0.0...

Astra Linux – Vulnerability in Golang 1.19, Golang 1.23

A certificate with a URI that has an IPv6 address and a zone ID may incorrectly satisfy a URI name constraint that applies to the certificate chain. Certificates containing URIs are not allowed in web PKIs; therefore, this only affects users of private PKIs that use URIs...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ext4: Fixed errors caused by “off-by-one” values when filling blocks with tlv entries during fast-commit operations. Due to several “off-by-one” errors, or perhaps due to a late change in design that wasn’t fully reflected in...

Astra Linux – Vulnerability in gnutls28

A flaw was discovered in GnuTLS. This vulnerability allows for a denial of service attack through excessive CPU usage and memory consumption, caused by specially crafted malicious certificates that contain a large number of name constraints and Subject Alternative Names SANs...

Astra Linux – Vulnerability in OpenSSL

A security vulnerability has been identified in all supported versions of OpenSSL, related to the verification of X.509 certificate chains that include policy constraints. Attackers may be able to exploit this vulnerability by creating a malicious certificate chain that triggers exponential use o...

Astra Linux – Vulnerability in Tomcat9

Improper handling of the case sensitivity vulnerability in Apache Tomcat’s GCI servlet allows bypassing security constraints that apply to the pathInfo component of a URI mapped to the CGI servlet. This issue affects Apache Tomcat versions from 11.0.0-M1 through 11.0.6, from 10.1.0-M1 through...

tomcat: Apache Tomcat: Misleading security logs due to incorrect control flow

A flaw was found in Apache Tomcat. Due to an always-incorrect control flow implementation, special roles and empty authorization constraints were not accurately included when the effective web.xml configuration was logged. This could lead to a security oversight where administrators might...

tomcat-coyote: tomcat: Improper Authorization allows security bypass

In Apache Tomcat, when multiple security constraints defined an HTTP method constraint for the same extension pattern, only the first method constraint was applied. A remote attacker could exploit this to bypass intended security restrictions for information or actions within the application...

crypto/x509: Incorrect enforcement of email constraints in crypto/x509

A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly...

BIT-TOMCAT-2026-66422 Apache Tomcat: Servlet role references can bypass declarative role constraints

Improper Authorization vulnerability in Apache Tomcat cause by security-role-ref definitions being incorrectly used as role aliases within the Realm in additional to the correct usage with Request.isUserInRole. This issue affects Apache Tomcat: from 11.0.0 through 11.0.24, from 10.1.0 through...

BIT-TOMCAT-2026-55956 Apache Tomcat: Security constraints for default servlet ignored method

Improper Authorization vulnerability in Apache Tomcat leads to security constraints specified for the default servlet ignoring any method or method omission configured as part of the constraint. This issue affects Apache Tomcat: from 11.0.0 through 11.0.22, from 10.1.0 through 10.1.55, from 9.0.0...

BIT-TOMCAT-2026-43515 Apache Tomcat: Security constraints not correctly applied

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0 through 11.0.21, from 10.1.0 through 10.1.54, from 9.0.0 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 throu...

crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...