gnutls: gnutls: Certificate validation bypass due to improper handling of URI and SRV SANs

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier URI or Service SRV Subject Alternative Names SANs. This could cause the certificate validation process to incorrectly fall back to...

gnutls: gnutls: Security bypass due to incorrect name constraint handling

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

Important: Red Hat Security Advisory: gnutls security update

An update for gnutls 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...

CVE-2026-46734

Dell Display and Peripheral Manager DDPM Mac, versions prior to 2.3, contain an Improper Certificate Validation vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass...

CVE-2026-46734

Dell Display and Peripheral Manager DDPM Mac, versions prior to 2.3, contain an Improper Certificate Validation vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass...

EUVD-2026-39355

Dell Display and Peripheral Manager DDPM Mac, versions prior to 2.3, contain an Improper Certificate Validation vulnerability. A low privileged attacker with local access could potentially exploit this vulnerability, leading to Protection mechanism bypass...

CVE-2026-46734

Dell DDPM Mac is affected by CVE-2026-46734: an Improper Certificate Validation in DDPM Mac versions prior to 2.3. The issue allows a local, low-privilege attacker (requires user interaction) to bypass protections, with potential impact on confidentiality, integrity, and availability (CVSSv3.1: 7...

OPENSUSE-SU-2026:21060-1 Security update for docker

This update for docker fixes the following issues - CVE-2026-33814: golang.org/x/net/http2: infinite loop in HTTP/2 transport when given bad SETTINGSMAXFRAMESIZE bsc1265782. - CVE-2026-39821: golang.org/x/net/idna: failure to reject ASCII-only Punycode-encoded labels allows for validation bypass...

qt5 security and bug fix update

An update is available for python-pyqt5-sip, qgnomeplatform, qt5-qtdoc, qt5-qtscript, qt5-qtlocation, qt5-qtsensors, adwaita-qt, qt5-qtconnectivity, qt5-qtquickcontrols2, qt5-qtserialbus, qt5-qtsvg, qt5-qtserialport, qt5-qtquickcontrols, qt5-qtmultimedia, qt5-qtxmlpatterns, qt5-qttranslations, qt...

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: Denial of Service via inefficient certificate chain validation

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...

Security Bulletin: Multiple Vulnerabilities in cryptography bundled with IBM Fusion, IBM Fusion HCI, IBM Fusion Data Cataloging, and IBM Fusion Content-Aware Storage

Summary IBM Fusion, IBM Fusion HCI, IBM Fusion Data Cataloging, and IBM Fusion Content-Aware Storage include the cryptography library, which is vulnerable to a critical buffer overflow and an improper certificate validation flaw. A classic buffer overflow vulnerability exists when non-contiguous...

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: Denial of Service via inefficient certificate chain validation

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...

Important: Red Hat Security Advisory: runc security update

An update for runc is now available for Red Hat Enterprise Linux 9. 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 from the...

Important: Red Hat Security Advisory: buildah security update

An update for buildah is now available for Red Hat Enterprise Linux 9. 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 from t...

crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation

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...

PT-2026-52562

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Certificates containing wildcard DNS Subject Alternative Names SANs, such as .example.com, bypass name-constraint checks performed by the Certificate Authority C...

PT-2026-52572

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description An issue exists where an un-negotiated Raw Public Key RPK, as defined in RFC 7250, is accepted instead of an X.509 certificate, allowing the bypass of chain...

PT-2026-52397

Name of the Vulnerable Software and Affected Versions Dell Display and Peripheral Manager DDPM Mac versions prior to 2.3 Description An Improper Certificate Validation issue exists where a low privileged attacker with local access could potentially bypass protection mechanisms. Improper Certifica...