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...

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...

google.golang.org/grpc/grpc-go: google.golang.org/grpc/authz: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation

A flaw was found in gRPC-Go, the Go language implementation of gRPC. This vulnerability, an authorization bypass, is caused by improper input validation of the HTTP/2 :path pseudo-header. A remote attacker can exploit this by sending raw HTTP/2 frames with a malformed :path that omits the mandato...

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...

OpenStack Keystone: OpenStack Keystone: Unauthorized cross-project access due to improper validation in EC2 credential creation

A flaw was found in OpenStack Keystone. An attacker holding an unrestricted application credential could exploit a vulnerability in the POST /v3/credentials endpoint where the caller-supplied projectid for an EC2-type credential was not validated against the project of the authenticating...

golang.org/x/net/idna: golang: net/http: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing

A flaw was found in golang.org/x/net/idna. ToASCII and ToUnicode incorrectly accept Punycode-encoded labels that decode to an ASCII-only hostname for example, xn--example-.com returns example.com instead of an error. Applications that validate the ASCII form then convert to Unicode may grant acce...

openstack-glance: OpenStack Glance: Server-Side Request Forgery leading to unauthorized internal network access

A flaw was found in OpenStack Glance. An authenticated user can exploit a Server-Side Request Forgery SSRF vulnerability within the web-download import feature. This vulnerability stems from inadequate validation of Uniform Resource Identifiers URIs, which can be circumvented using HTTP redirects...

net/url: Incorrect parsing of IPv6 host literals in net/url

The Go standard library function net/url.Parse insufficiently validated the host/authority component and accepted some invalid URLs by effectively treating garbage before an IP-literal as ignorable. The function should have rejected this as invalid...

pyasn1: pyasn1: Denial of Service due to memory exhaustion from malformed RELATIVE-OID

A flaw was found in pyasn1, a generic ASN.1 library for Python. A remote attacker could exploit this vulnerability by sending a specially crafted RELATIVE-OID with excessive continuation octets. This input validation vulnerability leads to memory exhaustion, resulting in a Denial of Service DoS f...

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 ...

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...

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...

DEBIAN-CVE-2026-56858

Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS...

CVE-2026-73417 JupyterLab: Cross-site scripting (XSS) via crafted settings file (`overrides.json`)

jupyterlab is an extensible environment for interactive and reproducible computing, based on the Jupyter Notebook Architecture. From 3.3.0 until 4.5.10 and 4.6.2, JupyterLab allows notebook settings to be shared and applied through an overrides.json file using the Import button in the Settings...

CVE-2026-56858

Previously, pathological inputs could close an unescaped '/' early, allowing for attack-controlled data to inject arbitrary content, potentially leading to XSS...

CVE-2026-18193

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to bypass security restrictions due to improper validation of user-controlled addresses...

CVE-2026-18249

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to gain elevated privileges due to improper validation of pointers read from Java-controlled addresses...

CVE-2026-18249

IBM i 7.3–7.6 is vulnerable to privilege escalation via improper pointer validation from Java-controlled addresses (CWE-269), requiring a remote authenticated attacker with low privileges. IBM provides PTFs for all affected releases (e.g., SJ11037 for 7.6); no workarounds are available. No exploi...

EUVD-2026-58468

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to gain elevated privileges due to improper validation of pointers read from Java-controlled addresses...