Most recent entries from all

ALSA-2026:69125 — Important: curl security update

Affected: AlmaLinux:10: curl, AlmaLinux:10: libcurl, AlmaLinux:10: libcurl-devel, AlmaLinux:10: libcurl-minimal

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es):

* libcurl: libcurl: Security feature bypass due to improper mTLS connection reuse (CVE-2026-8932) * curl: curl: Information disclosure via incorrect .netrc password lookup (CVE-2026-8926) * curl: libcurl: Unauthorized connection reuse due to a logical error (CVE-2026-8458) * curl: curl: Cookie injection via malicious HTTP server using super cookies (CVE-2026-8924) * curl: curl: Information disclosure via incorrect Digest authentication header reuse (CVE-2026-11856) * libcurl: libcurl: Information disclosure due to failure to clear proxy authentication credentials (CVE-2026-9079)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

BELL-CVE-2026-8458

Affected: Alpaquita:23: curl, Alpaquita:25: curl, Alpaquita:stream: curl, BellSoft Hardened Containers:stream: curl

certfr-2026-avi-0797 — De multiples vulnérabilités ont été découvertes dans cURL et libcurl. Certaines d'entre elles permettent à un attaquant…

certfr-2026-avi-0797

EUVD-2026-368427

fkie_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 reusing a connection a range of criteria must be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different services.

GHSA-88c6-6jfq-mm4q

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.

msrc_CVE-2026-8458 — wrong reuse for different services

msrc_CVE-2026-8458

openSUSE-SU-2026:11230-1 — curl-8.21.0-1.1 on GA media

curl-8.21.0-1.1 on GA media

RHSA-2026:29017 — Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

curl: curl: Insecure connection establishment due to TLS configuration mismatch curl: libcurl: Unauthorized connection reuse due to a logical error curl: curl: Cookie injection via malicious HTTP server using super cookies curl: curl: Double-free vulnerability in SASL authentication curl: curl: Information disclosure via incorrect .netrc password lookup curl: Information disclosure due to uncleared proxy authentication state libcurl: libcurl: Security feature bypass due to improper mTLS connection reuse libcurl: libcurl: Information disclosure due to failure to clear proxy authentication credentials libcurl: libcurl: Use-after-free via curl_easy_pause() in CURLMOPT_SOCKETFUNCTION callback libcurl: libcurl: Information disclosure due to persistent Referer header curl: curl: Man-in-the-middle attack via SSH host key bypass curl: libcurl: curl/libcurl: Remote denial of service via QUIC UDP receive function vulnerability libcurl: libcurl: Certificate validation bypass due to incorrect connection reuse curl: curl: Denial of Service via WebSocket PING flood curl: curl: Information disclosure via incorrect Digest authentication header reuse curl: curl: SSH host verification bypass when using schemeless URLs with SFTP/SCP

RLSA-2026:69125 — Important: curl security update

Affected: Rocky Linux:10: curl

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP.

Security Fix(es):

* libcurl: libcurl: Security feature bypass due to improper mTLS connection reuse (CVE-2026-8932)

* curl: curl: Information disclosure via incorrect .netrc password lookup (CVE-2026-8926)

* curl: libcurl: Unauthorized connection reuse due to a logical error (CVE-2026-8458)

* curl: curl: Cookie injection via malicious HTTP server using super cookies (CVE-2026-8924)

* curl: curl: Information disclosure via incorrect Digest authentication header reuse (CVE-2026-11856)

* libcurl: libcurl: Information disclosure due to failure to clear proxy authentication credentials (CVE-2026-9079)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

SUSE-SU-2026:22553-1 — Security update for curl

Security update for curl

UBUNTU-CVE-2026-8458

Affected: Ubuntu:Pro:18.04:LTS: curl, Ubuntu:Pro:20.04:LTS: curl, Ubuntu:22.04:LTS: curl, Ubuntu:24.04:LTS: curl, Ubuntu:25.10: curl, Ubuntu:26.04:LTS: curl

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 reusing a connection a range of criteria must be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different services.

WID-SEC-W-2026-2065 — cURL: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Sicherheitsvorkehrungen zu umgehen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder einen Denial-of-Service-Zustand zu verursachen.