CVE-2026-55599 phpseclib: X.509 certificate validation sends attacker-controlled outbound requests (server-side request forgery) via Authority Information Access

phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an application validates an untrusted X.509 certificate with phpseclib, X509::validateSignature reads a URL out of that certificate's Authority Information Access AIA extension and connects to it...

CVE-2026-55599 phpseclib: X.509 certificate validation sends attacker-controlled outbound requests (server-side request forgery) via Authority Information Access

phpseclib is a PHP secure communications library. From 0.1.1 until 1.0.30, 2.0.55, and 3.0.54, when an application validates an untrusted X.509 certificate with phpseclib, X509::validateSignature reads a URL out of that certificate's Authority Information Access AIA extension and connects to it...

OPENSUSE-SU-2026:11082-1 ghc-crypton-x509-1.9.1-1.1 on GA media

These are all security issues fixed in the ghc-crypton-x509-1.9.1-1.1 package on the GA media of openSUSE Tumbleweed...

OPENSUSE-SU-2026:11084-1 ghc-crypton-x509-system-1.9.0-1.1 on GA media

These are all security issues fixed in the ghc-crypton-x509-system-1.9.0-1.1 package on the GA media of openSUSE Tumbleweed...

RHEL 10 : osbuild-composer (RHSA-2026:27711)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:27711 advisory. A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building images for...

Amazon Linux 2 : golang, --advisory ALAS2-2026-3383 (ALAS-2026-3383)

The version of golang installed on the remote host is prior to 1.25.11-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3383 advisory. x509.Certificate.VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name SAN...

OPENSUSE-SU-2026:11083-1 ghc-crypton-x509-store-1.9.0-1.1 on GA media

These are all security issues fixed in the ghc-crypton-x509-store-1.9.0-1.1 package on the GA media of openSUSE Tumbleweed...

Amazon Linux 2023 : golang, golang-bin, golang-misc (ALAS2023-2026-1878)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1878 advisory. x509.Certificate.VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name SAN entries. This caused strings.Splithost, . to execute repeatedly on the same...

OPENSUSE-SU-2026:11085-1 ghc-crypton-x509-validation-1.9.1-1.1 on GA media

These are all security issues fixed in the ghc-crypton-x509-validation-1.9.1-1.1 package on the GA media of openSUSE Tumbleweed...

kernel: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id

In the Linux kernel, the following vulnerability has been resolved: crypto: asymmetrickeys - prevent overflow in asymmetrickeygenerateid Use checkaddoverflow to guard against potential integer overflows when adding the binary blob lengths and the size of an asymmetrickeyid structure and return...

OPENSUSE-SU-2026:20977-1 Security update for go1.25

This update for go1.25 fixes the following issues Update to go1.25.11 bsc1244485: - CVE-2026-27145: crypto/x509: split candidate hostname only once bsc1267450. - CVE-2026-42504: mime: quadratic complexity in WordDecoder.DecodeHeader bsc1267442. - CVE-2026-42507: net/textproto: arbitrary input are...

OPENSUSE-SU-2026:20976-1 Security update for go1.26

This update for go1.26 fixes the following issues Update to go1.26.4 bsc1255111: - CVE-2026-27145: crypto/x509: split candidate hostname only once bsc1267450. - CVE-2026-42504: mime: quadratic complexity in WordDecoder.DecodeHeader bsc1267442. - CVE-2026-42507: net/textproto: arbitrary input are...

SUSE-SU-2026:22154-1 Security update for go1.26

This update for go1.26 fixes the following issues Update to go1.26.4 bsc1255111: - CVE-2026-27145: crypto/x509: split candidate hostname only once bsc1267450. - CVE-2026-42504: mime: quadratic complexity in WordDecoder.DecodeHeader bsc1267442. - CVE-2026-42507: net/textproto: arbitrary input are...

kernel security update

4.18.0-553.134.1 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

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...

GHSA-M557-WRGG-6RP4 phpseclib: X.509 certificate validation sends attacker-controlled outbound requests (server-side request forgery) via Authority Information Access

Summary When an application validates an untrusted X.509 certificate with phpseclib, X509::validateSignature reads a URL out of that certificate's Authority Information Access AIA extension and connects to it. Attacker who supplies certificate fully controls host, port, and path of that connectio...

Important: podman security update

The podman tool manages pods, container images, and containers. It is part of the libpod library, which is for applications that use container pods. Container pods is a concept in Kubernetes. Security Fixes: crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain...

EUVD-2026-36465

Netty: Wrapping plain trust manager silently disables hostname verification...

Netty: Wrapping plain trust manager silently disables hostname verification

SimpleTrustManagerFactory.engineGetTrustManagers and related paths wrap any user-supplied plain X509TrustManager in X509TrustManagerWrapper, which extends X509ExtendedTrustManager but implements the 3-arg checkServerTrustedchain, authType, SSLEngine by discarding the SSLEngine and calling the 2-a...

RHEL 9 : osbuild-composer (RHSA-2026:26054)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:26054 advisory. A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building...