SUSE CVE-2026-8458

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

EulerOS 2.0 SP12 : curl (EulerOS-SA-2026-2583)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but...

CVE-2026-54784

CoreWCF is a port of the service side of Windows Communication Foundation WCF to .NET Core. In version 1.9.0, CoreWCF SPNEGO SecurityContextToken negotiation can expose the proof key recovered from the RSTR when TransportWithMessageCredential with Windows client credentials and session...

AZL-91809 CVE-2026-8458 affecting package curl for versions less than 8.11.1-10

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

AZL-91824 CVE-2026-8458 affecting package cmake for versions less than 3.30.3-15

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

ALPINE-CVE-2026-8458

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

CVE-2026-8458

The libcurl library contains a logical error in its connection reuse logic. When performing Negotiate-authenticated requests, the library might wrongfully reuse an existing connection to the same server that was authenticated using different "services" . This flaw can lead to incorrect authentica...

CVE-2026-8458 wrong reuse for different services

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

EUVD-2026-41504

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different 'services'. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

CVE-2026-8458 wrong reuse for different services

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

CVE-2026-8458

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

CVE-2026-8458: Exposure of Data Element to Wrong Session

libcurl might in some circumstances reuse the wrong connection when asked to do Negotiate-authenticated ones, even when they are set to use different "services". libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When...

SUSE SLES12 Security Update : curl (SUSE-SU-2026:2703-1)

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2703-1 advisory. This update for curl fixes the following issues - CVE-2026-4873: connection reuse ignores TLS requirement bsc1262631. - CVE-2026-5545: wrong...

Security Bulletin: Multiple vulnerabilities impacts AIX due to cURL libcurl (CVE-2026-1965, CVE-2026-3783, CVE-2026-3784)

Summary Multiple vulnerabilities in the curl/libcurl are related to unauthorized access. 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 a pool o...

USN-8487-1 curl vulnerabilities

Andrew Nesbitt discovered that curl could reuse an existing live connection during STARTTLS-based connection upgrades even when the TLS configuration did not match. A remote attacker could possibly use this issue to cause curl to use an unintended TLS configuration. CVE-2026-8286 Muhamad Arga...

Security Bulletin: Vulnerability impacts AIX due to cURL libcurl (CVE-2026-5545).

Summary A logic error allows libcurl to reuse an existing Negotiate-authenticated connection even when a new request specifies different credentials for the same server. Vulnerability Details CVEID:CVE-2026-5545 DESCRIPTION: libcurl might in some circumstances reuse the wrong connection when aske...

Security update for curl

This update for curl fixes the following issues CVE-2026-4873: connection reuse ignores TLS requirement bsc1262631. CVE-2026-5545: wrong reuse of HTTP Negotiate connection bsc1262632. CVE-2026-5773: wrong reuse of SMB connection bsc1262633. CVE-2026-6253: proxy credentials leak over redirect-to...

SUSE-SU-2026:2703-1 Security update for curl

This update for curl fixes the following issues - CVE-2026-4873: connection reuse ignores TLS requirement bsc1262631. - CVE-2026-5545: wrong reuse of HTTP Negotiate connection bsc1262632. - CVE-2026-5773: wrong reuse of SMB connection bsc1262633. - CVE-2026-6253: proxy credentials leak over...

The vulnerability of the smb3_validate_negotiate() function in the fs/cifs/smb2pdu.c module of the Linux kernel file system allows a attacker to trigger a service failure.

The vulnerability of the smb3validatenegotiate function in the fs/cifs/smb2pdu.c module of the Linux kernel operating system is related to incorrect resource initialization. Exploiting this vulnerability could allow an attacker to cause a service failure...

Multiple vulnerabilities impacts AIX due to cURL libcurl (CVE-2025-14819 CVE-2026-1965 CVE-2026-3783 CVE-2026-3784 CVE-2026-5545)

IBM SECURITY ADVISORY First Issued: Fri Jun 26 01:16:13 CDT 2026 The most recent version of this document is available here: https://aix.software.ibm.com/aix/efixes/security/curladvisory10.asc Security Bulletin: Multiple vulnerabilities impacts AIX due to cURL libcurl CVE-2025-14819, CVE-2026-196...