AlmaLinux 9.6 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1773939685)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1773939685 advisory. - libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request...

Rocky Linux 9.6 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1773939685)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1773939685 advisory. - libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request...

CentOS Linux 8.5 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (CENTOS8.5:CLSA-2026:1774259901)

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2026:1774259901 advisory. - libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request...

AlmaLinux 9.2 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1773938530)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1773938530 advisory. - libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request...

AlmaLinux 9.6 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal (ALMALINUX9.6:CLSA-2026:1778889816)

The AlmaLinux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1778889816 advisory. - libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTPS request after a...

Rocky Linux 9.6 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal (ALMALINUX9.6:CLSA-2026:1778889816)

The Rocky Linux 9.6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1778889816 advisory. - libcurl might in some circumstances reuse the wrong connection when asked to do an authenticated HTTPS request after a...

CentOS Linux 8.4 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1774259220)

The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1774259220 advisory. - libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request...

CentOS Linux 8 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (CENTOS-STREAM8:CLSA-2026:1774366368)

The CentOS Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS-STREAM8:CLSA-2026:1774366368 advisory. - libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request...

USN-8487-2: curl regression

USN-8487-1 fixed vulnerabilities in curl. Unfortunately that update contained an incomplete fix for CVE-2026-8927. This update fixes the problem. Original advisory details: Andrew Nesbitt discovered that curl could reuse an existing live connection during STARTTLS-based connection upgrades even...

USN-8487-2 curl regression

USN-8487-1 fixed vulnerabilities in curl. Unfortunately that update contained an incomplete fix for CVE-2026-8927. This update fixes the problem. Original advisory details: Andrew Nesbitt discovered that curl could reuse an existing live connection during STARTTLS-based connection upgrades even...

curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication

A flaw was found in curl. When an application uses libcurl to make multiple Negotiate-authenticated HTTP or HTTPS requests to the same server with different credentials, libcurl may incorrectly reuse an existing connection. This logical error can cause a subsequent request to be sent using the...

OESA-2026-4127 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: Successfully using libcurl to do a transfer to a specific HTTP origin hostA with Digest authentication and then changing the origin to a...

OESA-2026-4128 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: Successfully using libcurl to do a transfer to a specific HTTP origin hostA with Digest authentication and then changing the origin to a...

OESA-2026-4125 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: Successfully using libcurl to do a transfer to a specific HTTP origin hostA with Digest authentication and then changing the origin to a...

OESA-2026-4124 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: Successfully using libcurl to do a transfer to a specific HTTP origin hostA with Digest authentication and then changing the origin to a...

CVE-2026-88007

A flaw in Traefik's HTTP/3 ConnContext allows unauthenticated remote attackers to bypass authentication on backends using connection-bound NTLM or Negotiate protocols. Missing service.AddTransportOnContext calls lead to shared kerberosRoundTripper transports, enabling attackers to hijack persiste...

Security Bulletin: Vulnerable Version of Software in Use

Summary Vulnerable Version of Software in Use: Prior versions include vulnerable version of curl. Vulnerability Details CVEID:CVE-2026-1965 DESCRIPTION: libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features...

DEBIAN-CVE-2026-90301

In the Linux kernel, the following vulnerability has been resolved: ocfs2: o2hb: quiesce negotiate handlers and timeout work Heartbeat regions publish struct o2hbregion as the private data for the NEGOTIMEOUT and NEGOAPPROVE o2net handlers as soon as makeitem creates the configfs region. The...

CVE-2026-90301 ocfs2: o2hb: quiesce negotiate handlers and timeout work

In the Linux kernel, the following vulnerability has been resolved: ocfs2: o2hb: quiesce negotiate handlers and timeout work Heartbeat regions publish struct o2hbregion as the private data for the NEGOTIMEOUT and NEGOAPPROVE o2net handlers as soon as makeitem creates the configfs region. The...

CVE-2026-90301 ocfs2: o2hb: quiesce negotiate handlers and timeout work

In the Linux kernel, the following vulnerability has been resolved: ocfs2: o2hb: quiesce negotiate handlers and timeout work Heartbeat regions publish struct o2hbregion as the private data for the NEGOTIMEOUT and NEGOAPPROVE o2net handlers as soon as makeitem creates the configfs region. The...