Fedora 44 : python-cryptography (2026-2423902e8b)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-2423902e8b advisory. Update to v46.0.6 This includes a single fix for security issue: SECURITY ISSUE: Fixed a bug where name constraints were not applied to peer names during...

cryptography has incomplete DNS name constraint enforcement on peer names

Summary In versions of cryptography prior to 46.0.5, DNS name constraints were only validated against SANs within child certificates, and not the "peer name" presented during each validation. Consequently, cryptography would allow a peer named bar.example.com to validate against a wildcard leaf...

EulerOS Virtualization 2.12.1 : gnutls (EulerOS-SA-2026-1428)

According to the versions of the gnutls packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : A flaw was found in the GnuTLS library, specifically in the gnutlspkcs11tokeninit function that handles PKCS11 token initialization...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m giving the Ross Anderson Lecture at the University of Cambridge’s Churchill College at 5:30 PM GMT on Thursday, March 19, 2026. I’m speaking at RSAC 2026 in San Francisco, California, USA, on Wednesday, March 25, 2026. I’m part...

CLSA-2026-1773314910 git-lfs: Fix of 3 CVEs

rebuild with newer golang version 1.22.9-1.el92.tuxcare.els6 to fix the following CVE - CVE-2025-61726: limit parsed URL query parameters to mitigate excessive memory consumption during form parsing - CVE-2025-68121: fix TLS session resumption bypass by preventing shared auto-rotated ticket keys...

CLSA-2026-1773161124 Fix CVE(s): CVE-2021-22876, CVE-2025-15079

SECURITY UPDATE: acceptance of hosts not listed in specified knownhosts file during SSH-based transfers - debian/patches/CVE-2025-15079.patch: Set both knownhosts options to same file and fix surprises caused by libssh exposing separate KNOWNHOSTS and GLOBALKNOWNHOSTS options. - CVE-2025-15079...

PT-2026-24613

Hostname verification in Apache ZooKeeper ZKTrustManager falls back to reverse DNS PTR when IP SAN validation fails, allowing attackers who control or spoof PTR records to impersonate ZooKeeper servers or clients with a valid certificate for the PTR name. It's important to note that attacker must...

CLSA-2026-1772620440 skopeo: Fix of 3 CVEs

rebuild with newer golang version 1.25.7-1.el96.tuxcare.els1 to fix the following CVEs - CVE-2025-68121: fix TLS session resumption bypass by preventing shared auto-rotated ticket keys in Config and validating full certificate chain expiry - CVE-2025-61726: limit parsed URL query parameters to...

CLSA-2026-1772619878 runc: Fix of 3 CVEs

rebuild with newer golang version 1.25.7-1.el96.tuxcare.els1 to fix the following CVEs - CVE-2025-68121: fix TLS session resumption bypass by preventing shared auto-rotated ticket keys in Config and validating full certificate chain expiry - CVE-2025-61726: limit parsed URL query parameters to...

CLSA-2026-1772576264 containernetworking-plugins: Fix of 3 CVEs

rebuild with newer golang version 1.25.7-1.el96.tuxcare.els1 to fix the following CVEs - CVE-2025-68121: fix TLS session resumption bypass by preventing shared auto-rotated ticket keys in Config and validating full certificate chain expiry - CVE-2025-61726: limit parsed URL query parameters to...

CLSA-2026-1772456031 runc: Fix of 3 CVEs

rebuild with newer golang version 1.22.9-1.el92.tuxcare.els6 to fix the following CVE's - CVE-2025-68121: fix TLS session resumption bypass by preventing shared auto-rotated ticket keys in Config and validating full certificate chain expiry - CVE-2025-61726: limit parsed URL query parameters to...

CLSA-2026-1772455449 buildah: Fix of 3 CVEs

rebuild with newer golang version 1.22.9-1.el92.tuxcare.els6 to fix the following CVE's - CVE-2025-68121: fix TLS session resumption bypass by preventing shared auto-rotated ticket keys in Config and validating full certificate chain expiry - CVE-2025-61726: limit parsed URL query parameters to...

CLEANSTART-2026-VZ85637 excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate

Multiple security vulnerabilities affect the helm-fips package. An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. See references for individual vulnerability details...

Former Google Engineers Indicted Over Trade Secret Transfers to Iran

Two former Google engineers and one of their husbands have been indicted in the U.S. for allegedly committing trade secret theft from the search giant and other tech firms and transferring the information to unauthorized locations, including Iran. Samaneh Ghandali, 41, and her husband Mohammadjav...

CentOS 9 : gnutls-3.8.10-3.el9

The remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the gnutls-3.8.10-3.el9 build changelog. - A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I'm speaking at Ontario Tech University in Oshawa, Ontario, Canada, at 2 PM ET on Thursday, February 26, 2026. I’m speaking at the Personal AI Summit in Los Angeles, California, USA, on Thursday, March 5, 2026. I’m speaking at Tech...

CLEANSTART-2026-UR80185 excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate

Multiple security vulnerabilities affect the helm-fips package. An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. See references for individual vulnerability details...

CLEANSTART-2026-HX78047 excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate

Multiple security vulnerabilities affect the helm-fips package. An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. See references for individual vulnerability details...

CLEANSTART-2026-GS02052 excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate

Multiple security vulnerabilities affect the helm-fips package. An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. See references for individual vulnerability details...

CLEANSTART-2026-BL06950 excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate

Multiple security vulnerabilities affect the istio-pilot-discovery-fips package. An excluded subdomain constraint in a certificate chain does not restrict the usage of wildcard SANs in the leaf certificate. See references for individual vulnerability details...