1393 matches found
CVE-2026-5188 Integer underflow in X.509 SAN parsing in wolfSSL
An integer underflow issue exists in wolfSSL when parsing the Subject Alternative Name SAN extension of X.509 certificates. A malformed certificate can specify an entry length larger than the enclosing sequence, causing the internal length counter to wrap during parsing. This results in incorrect...
Linux Distros Unpatched Vulnerability : CVE-2026-5188
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An integer underflow issue exists in wolfSSL when parsing the Subject Alternative Name SAN extension of X.509 certificates. A malformed certificate can specify ...
CVE-2026-5263
URI nameConstraints from constrained intermediate CAs are parsed but not enforced during certificate chain verification in wolfcrypt/src/asn.c. A compromised or malicious sub-CA could issue leaf certificates with URI SAN entries that violate the nameConstraints of the issuing CA, and wolfSSL woul...
UBUNTU-CVE-2026-5263
URI nameConstraints from constrained intermediate CAs are parsed but not enforced during certificate chain verification in wolfcrypt/src/asn.c. A compromised or malicious sub-CA could issue leaf certificates with URI SAN entries that violate the nameConstraints of the issuing CA, and wolfSSL woul...
CVE-2026-5263 URI nameConstraints not enforced in ConfirmNameConstraints()
URI nameConstraints from constrained intermediate CAs are parsed but not enforced during certificate chain verification in wolfcrypt/src/asn.c. A compromised or malicious sub-CA could issue leaf certificates with URI SAN entries that violate the nameConstraints of the issuing CA, and wolfSSL woul...
CVE-2026-5263
URI nameConstraints from constrained intermediate CAs are parsed but not enforced during certificate chain verification in wolfcrypt/src/asn.c. A compromised or malicious sub-CA could issue leaf certificates with URI SAN entries that violate the nameConstraints of the issuing CA, and wolfSSL woul...
PT-2026-31793
Name of the Vulnerable Software and Affected Versions WolfSSL affected versions not specified Description WolfSSL improperly handles URI name constraints from constrained intermediate Certificate Authorities CAs during certificate chain verification. The parsing of these constraints occurs, but...
UBUNTU-CVE-2026-33810
When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the...
CVE-2026-33810
CVE-2026-33810 affects the Go crypto/x509 certificate chain validation. The issue occurs when verifying a chain with excluded DNS constraints: constraints are not consistently applied to wildcard DNS SANs if the SANs’ case differs from the constraint, which can affect validation of otherwise trus...
CVE-2026-33810 Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509
When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the...
gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification
A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...
gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification
A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...
gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification
A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...
gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification
A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...
Medium: gnutls
Issue Overview: A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs. CVE-2025-148...
Amazon Linux 2023 : gnutls, gnutls-c++, gnutls-dane (ALAS2023-2026-1529)
It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1529 advisory. A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a...
Improper Certificate Validation
github.com/envoyproxy/envoy is vulnerable to improper certificate validation. The vulnerability is due to incorrect handling of embedded null bytes \0 in OTHERNAME SAN values within mTLS certificate matching, which allows an attacker to bypass certificate validation and achieve unauthorized acces...
Improper Certificate Validation
Overview Affected versions of this package are vulnerable to Improper Certificate Validation in the processing of X.509 certificate paths with DNS name constraints when the end-entity certificate lacks a subject alternative name. An attacker can circumvent DNS name constraints by using a mixed-ca...
ALPINE-CVE-2026-32884
Botan is a C++ cryptography library. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of allowable DNS names, if no subject alternative name is defined in the end-entity certificate Botan would check that the CN was allowed by t...
CVE-2026-32884
Botan is a C++ cryptography library. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of allowable DNS names, if no subject alternative name is defined in the end-entity certificate Botan would check that the CN was allowed by t...