CVE-2026-1858

wget2 accepts a server certificate with incorrect Key Usage KU or Extended Key Usage EKU. If the attackers compromise a certificate with the associated private key issued for a different purpose, they may be able to reuse it for TLS server authentication...

CVE-2026-1858 wget2 Improper Certificate Validation

wget2 accepts a server certificate with incorrect Key Usage KU or Extended Key Usage EKU. If the attackers compromise a certificate with the associated private key issued for a different purpose, they may be able to reuse it for TLS server authentication...

CVE-2026-1858 wget2 Improper Certificate Validation

wget2 accepts a server certificate with incorrect Key Usage KU or Extended Key Usage EKU. If the attackers compromise a certificate with the associated private key issued for a different purpose, they may be able to reuse it for TLS server authentication...

CVE-2026-1858

wget2 accepts a server certificate with incorrect Key Usage KU or Extended Key Usage EKU. If the attackers compromise a certificate with the associated private key issued for a different purpose, they may be able to reuse it for TLS server authentication...

openjdk: Enhance certificate chain validation (Oracle CPU 2026-04)

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: JSSE. Supported versions that are affected are Oracle Java SE: 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 a...

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 ...

Important: Red Hat Security Advisory: buildah security update

An update for buildah is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate

A flaw was found in golang. A remote attacker could exploit this vulnerability by providing a specially crafted certificate during the error string construction process within the HostnameError.Error function. This flaw, caused by unbounded string concatenation, leads to excessive resource...

CLSA-2026-1777465438 openssh: Fix of CVE-2026-35414

CVE-2026-35414: fix incorrect matching of the authorizedkeys principals="" option against certificate principals containing comma characters...

Certificate Impersonation

spring-security-web is vulnerable to certificate impersonation. The vulnerability is due to improper parsing of malformed X.509 certificate CN values in SubjectX500PrincipalExtractor, which can result in extracting an incorrect username and allow attackers to impersonate another user...

Important: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 2.6.15

Red Hat OpenShift Service Mesh 2.6.15 This update has a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section. Red Hat OpenShift Service Mesh...

openjdk: Enhance certificate chain validation (Oracle CPU 2026-04)

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE component: JSSE. Supported versions that are affected are Oracle Java SE: 8u481, 8u481-b50, 8u481-perf, 11.0.30, 17.0.18, 21.0.10, 25.0.2, 26; Oracle GraalVM for JDK: 17.0.18 a...

CLSA-2026-1777455447 openssl: Fix of CVE-2026-28387

CVE-2026-28387: fix use-after-free / double-free in danematch by releasing the previously stored dane-mcert with X509free instead of OPENSSLfree; the slot is reference-bumped via X509upref so the matching free is X509free...

CLSA-2026-1777453408 Fix CVE(s): CVE-2026-35414

SECURITY UPDATE: incorrect matching of principals in the authorizedkeys principals="..." option when a certificate principal contains a comma. - debian/patches/CVE-2026-35414.patch: fix matchprincipalsoption to split on comma and compare principals exactly - CVE-2026-35414...

CLSA-2026-1777453233 Fix CVE(s): CVE-2026-21925, CVE-2026-21932, CVE-2026-21933, CVE-2026-21945

OpenJDK 11.0.30 release, build 7. - CVE-2026-21925: Improve JMX connections - CVE-2026-21932: Enhance handling of URIs AWT/JavaFX - CVE-2026-21933: Improve HttpServer request handling - CVE-2026-21945: Enhance certificate checking - Release notes:...

BIT-THRIFT-2026-41603 Apache Thrift: Java TSSLTransportFactory hostname verification

Improper Validation of Certificate with Host Mismatch vulnerability in Apache Thrift. This issue affects Apache Thrift: before 0.23.0. Users are recommended to upgrade to version 0.23.0, which fixes the issue...

Important: Red Hat Security Advisory: grafana-pcp security update

An update for grafana-pcp is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability fr...

crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building

A flaw was found in the Go standard library packages crypto/x509 and crypto/tls. During the process of building a certificate chain, an attacker can provide a large number of intermediate certificates. This excessive input is not properly limited, leading to an uncontrolled amount of work being...

CURL-CVE-2026-7009 OCSP stapling bypass with Apple SecTrust

When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine...

OCSP stapling bypass with Apple SecTrust

When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it fails to detect OCSP problems and instead wrongly consider the response as fine...