crypto/x509: golang: Panic when validating certificates with DSA public keys in crypto/x509

A denial of service vector has been discovered in the golang crypto/x509 module. An attacker could craft an intermediate X.509 certificate containing a DSA public key and can crash a remote host with an unauthenticated call to any endpoint that verifies the certificate chain...

crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption

A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security TLS session resumption when certificate authority CA settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing ...

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/tls: crypto/tls: Incorrect certificate validation during TLS session resumption

A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security TLS session resumption when certificate authority CA settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing ...

CLEANSTART-2026-HZ73294 Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service

Multiple security vulnerabilities affect the kube-fluentd-operator package. Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. See references for individual...

PT-2026-31749

An Improper Following of a Certificate's Chain of Trust vulnerability in J-Web of Juniper Networks Junos OS on SRX Series allows a PITM to intercept the communication of the device and get access to confidential information and potentially modify it. When an SRX device is provisioned to connect t...

Erlang/OTP 27.x < 27.3.4.10 / 28.x < 28.4.2 OCSP Certificate Validation Bypass (CVE-2026-32144)

The version of Erlang/OTP installed on the remote host is 27.x prior to 27.3.4.10 or 28.x prior to 28.4.2. It is, therefore, affected by a certificate validation bypass vulnerability: - Improper certificate validation in the publickey application's OCSP response validation allows an attacker who...

Linux Distros Unpatched Vulnerability : CVE-2026-33810

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different...

Apache Tomcat和Apache Tomcat Native 安全漏洞

Apache Tomcat is the United States Apache Apache Foundation of a lightweight Web application server for the implementation of Servlet and JavaServer Page JSP support. Apache Tomcat client certificate has a validation flaw vulnerability, the vulnerability is due to allow revoked certificate/test...

SUSE CVE-2026-32281

Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the...

CVE-2026-32281

A flaw was found in Go's crypto/x509 package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service DoS for...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation through the Verifier.verifyleafcerts logic in src/rfc3161client/verify.py. An attacker can make a timestamp response from a trusted TSA verify as if it came from a different pinned TSA by injecting...

EUVD-2026-20480

rfc3161-client Has Improper Certificate Validation...

GHSA-3XXC-PWJ6-JGRJ rfc3161-client Has Improper Certificate Validation

Summary An Authorization Bypass vulnerability in rfc3161-client's signature verification allows any attacker to impersonate a trusted TimeStamping Authority TSA. By exploiting a logic flaw in how the library extracts the leaf certificate from an unordered PKCS7 bag of certificates, an attacker ca...

CVE-2026-33753 Improper Certificate Validation in rfc3161-client

rfc3161-client is a Python library implementing the Time-Stamp Protocol TSP described in RFC 3161. Prior to 1.0.6, an Authorization Bypass vulnerability in rfc3161-client's signature verification allows any attacker to impersonate a trusted TimeStamping Authority TSA. By exploiting a logic flaw i...

CVE-2026-33753 Improper Certificate Validation in rfc3161-client

rfc3161-client is a Python library implementing the Time-Stamp Protocol TSP described in RFC 3161. Prior to 1.0.6, an Authorization Bypass vulnerability in rfc3161-client's signature verification allows any attacker to impersonate a trusted TimeStamping Authority TSA. By exploiting a logic flaw i...

CVE-2026-33753 Improper Certificate Validation in rfc3161-client

rfc3161-client is a Python library implementing the Time-Stamp Protocol TSP described in RFC 3161. Prior to 1.0.6, an Authorization Bypass vulnerability in rfc3161-client's signature verification allows any attacker to impersonate a trusted TimeStamping Authority TSA. By exploiting a logic flaw i...

CVE-2026-33753

CVE-2026-33753 affects the Python library rfc3161-client (prior to 1.0.6). The vulnerability arises in the library’s signature verification when extracting the leaf certificate from an unordered PKCS#7 bag of certificates, enabling an attacker to append a forged certificate that matches the targe...

golang: crypto/x509: excluded subdomain constraint does not restrict wildcard SANs

A flaw was found in the crypto/x509 package in the Go standard library. This vulnerability allows a certificate validation bypass via an excluded subdomain constraint in a certificated chain as it does not restrict the usage of wildcard SANs in the leaf certificate...

Security Bulletin: Certificate Name Constraints Bypass via Wildcard SANs affects watsonx.data

Summary Improper enforcement of certificate name constraints allows wildcard SANs e.g., .example.com to bypass excluded subdomain restrictions e.g., test.example.com, potentially enabling unauthorized certificate usage.This can affect watsonx.data. Vulnerability Details CVEID:CVE-2025-61727...