CVE-2026-12249 Canonical ADSys Trust Store Poisoning via Plaintext HTTP Certificate Auto-Enrollment

An issue was discovered in Canonical ADSys upstream versions through v0.16.2. During Active Directory Certificate Services AD CS certificate auto-enrollment via the vendored Samba client script internal/policies/certificate/python/vendorsamba/gp/gpcertautoenrollext.py, ADSys utilizes a plaintext...

httpd: mod_md: unrestricted OCSP response leads to resource exhaustion

A flaw was found in the modmd module of httpd. When processing OCSP Online Certificate Status Protocol responses from a malicious or compromised OCSP responder, the module fails to enforce proper size limits on the incoming data. This issue leads to memory exhaustion and a denial of service...

httpd: mod_md: unrestricted OCSP response leads to resource exhaustion

A flaw was found in the modmd module of httpd. When processing OCSP Online Certificate Status Protocol responses from a malicious or compromised OCSP responder, the module fails to enforce proper size limits on the incoming data. This issue leads to memory exhaustion and a denial of service...

CVE-2026-54099

A flaw was found in the Windows Machine Config Operator WMCO for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A...

Security Bulletin: Vulnerability in Apache Tomcat affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.

Summary Potential vulnerability in Apache Tomcat has been identified that affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component. . The vulnerability have been addressed. Refer to details for additional information...

OPENSUSE-SU-2026:21144-1 Security update for mbedtls

This update for mbedtls fixes the following issues: Changes in mbedtls: - Update to 3.6.6 LTS maintenance update from 3.6.1; security fixes accumulated across the 3.6.2-3.6.6 releases: CVE-2024-49195 boo1231708: buffer underrun in pkwrite when writing an opaque key pair CVE-2025-27809 boo1240051:...

CVE-2026-54099 Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters

A flaw was found in the Windows Machine Config Operator WMCO for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A...

CVE-2026-54099

A flaw was found in the Windows Machine Config Operator WMCO for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A...

CVE-2026-54099 Windows-machine-config-operator: windows-machine-config-operator: wicd csr extra-organization allows privilege escalation to system:masters

A flaw was found in the Windows Machine Config Operator WMCO for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A...

CVE-2026-54099

A flaw was found in the Windows Machine Config Operator WMCO for Red Hat OpenShift Container Platform. The WICD CSR auto-approver validates that a Certificate Signing Request contains the organization system:wicd-nodes but does not reject additional organization values such as system:masters. A...

SUSE-SU-2026:22315-1 Security update for openssl-3

This update for openssl-3 fixes the following issues - CVE-2026-2673: TLS 1.3 servers may choose unexpected key agreement group bsc1259652. - CVE-2026-7383: Possible Heap Buffer Overflow in ASN.1 Multibyte String Conversion bsc1266340. - CVE-2026-9076: Out-of-Bounds Read in CMS Password-Based...

Moderate: Red Hat Security Advisory: golang-github-openprinting-ipp-usb security update

An update for golang-github-openprinting-ipp-usb is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

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...

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...

Moderate: Red Hat Security Advisory: osbuild-composer security update

An update for osbuild-composer is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

kernel security, bug fix, and enhancement update

4.18.0-553.136.1 - 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...

PT-2026-51305

Name of the Vulnerable Software and Affected Versions Red Hat OpenShift Container Platform 4 affected versions not specified Description A flaw exists in the Windows Machine Config Operator WMCO where the WICD CSR auto-approver validates that a Certificate Signing Request contains the organizatio...

Amazon Linux 2 : golist, --advisory ALAS2-2026-3382 (ALAS-2026-3382)

The version of golist installed on the remote host is prior to 0.10.1-10. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3382 advisory. x509.Certificate.VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name SAN...

PT-2026-51439

Name of the Vulnerable Software and Affected Versions Paymenter versions prior to 1.5.0 Description The PayPal webhook endpoint '/extensions/paypal/webhook' processes the PAYPAL-CERT-URL HTTP header without validation. This value is passed directly into a server-side HTTP request via the file get...

Medium: golist

Issue Overview: 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 input hostname. With a large DNS SAN list, verification costs scaled quadratically bas...