RHEL 8 : Red Hat OpenStack Platform 16.2 security advisory (Important) (RHSA-2026:54757)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:54757 advisory. Red Hat OpenStack Platform provides the facilities for building, deploying and monitoring a private or public infrastructure-as-a-service...

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: 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: Red Hat OpenStack Platform 16.2 security advisory

An update for Red Hat OpenStack Platform 16.2 Train is now available. 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 th...

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...

erlang: Erlang OTP public_key: Certificate validation bypass allows hostname spoofing

A flaw was found in Erlang OTP publickey. This improper certificate validation vulnerability allows a subordinate Certificate Authority CA with restricted DNS nameConstraints to bypass these restrictions. By issuing a leaf certificate that lacks a Subject Alternative Name SAN but contains a craft...

erlang: Erlang OTP public_key: Certificate chain forgery via improper trust chain validation

A flaw was found in Erlang OTP's publickey module. This vulnerability CWE-295, related to improper certificate validation, allows a non-Certificate Authority CA certificate to be accepted as an intermediate issuer. A remote attacker, holding an end-entity certificate issued by a trusted CA, can...

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...

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 ...

org.apache.sshd/sshd-core: Apache MINA SSHD: Unauthorized command execution due to improper certificate validation

A flaw was found in Apache MINA SSHD server-side. During user authentication, the server's OpenSSH user certificate validation process failed to properly check for or validate unsupported options like 'force-command' or 'verify-required' embedded within a user's certificate. This oversight could...

CVE-2026-17075

IBM i 7.3 through 7.6 is vulnerable (CWE-287: Improper Authentication) to remote attackers obtaining sensitive information and performing unauthorized operations via improper authentication token validation. Fixes are available: PTF SJ10904 for 7.3, SJ10905 for 7.4, SJ10906 for 7.5, and SJ10907 f...

CVE-2026-17075 IBM i is Affected By Multiple Vulnerabilities in Digital Certificate Manager

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to obtain sensitive information and perform unauthorized operations due to improper validation of authentication tokens...

CVE-2026-17088 IBM i is Affected By Multiple Vulnerabilities in Digital Certificate Manager

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to obtain sensitive information due to a path traversal vulnerability...

CVE-2026-17088

IBM i versions 7.3–7.6 are affected by CVE-2026-17088 in Digital Certificate Manager. A path traversal vulnerability could allow a remote authenticated attacker to obtain sensitive information. CVSS 3.1 base score 4.3 (N: network, L: low confidentiality impact, PR: Low). Remediation is via IBM i ...

CVE-2026-17071

CVE-2026-17071 affects IBM i 7.3–7.6. A remote authenticated attacker can perform file manipulation due to a path traversal flaw in Digital Certificate Manager. The vulnerability is rooted in improper path handling, enabling manipulation of files when authenticated over the network. Affected IBM ...

CVE-2026-17045

CVE-2026-17045 affects IBM i 7.6, 7.5, 7.4, and 7.3 due to improper session management that can allow a remote authenticated attacker to perform unauthorized operations and access sensitive information. The vulnerability is categorized under CWE-294 (Authentication Bypass by Capture-replay) with ...

CVE-2026-17045 IBM i is Affected By Multiple Vulnerabilities in Digital Certificate Manager

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to perform unauthorized operations and access sensitive information due to improper session management...

Important: Red Hat Security Advisory: gstreamer1-plugins-bad-free security update

An update for gstreamer1-plugins-bad-free is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common...

gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback

A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an...

gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback

A stack buffer overflow vulnerability was found in GStreamer's DTLS plugin. During a DTLS handshake, the peer certificate Subject Distinguished Name is printed into a fixed-size 2048-byte stack buffer without bounds checking. A remote unauthenticated attacker can send a certificate with an...