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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-2026-8926

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-2026-368430

fkie_cve-2026-8926

When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username (without a password), like `https://user@example.com/`, curl could wrongly get and use the password for *another* user set in the `.netrc` file for that host if such a one exists and there is no match for the specified user.

GHSA-vw2x-3w8j-rq82

When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username(without a password), like `https://user@example.com/`, curl could wrongly get and use the password for *another* user set in the `.netrc` file for that host if such a one exists and there is no match for the specified user.

msrc_CVE-2026-8926 — password leak with netrc and user in URL

msrc_CVE-2026-8926

OESA-2026-3170 — curl security update

Affected: openEuler:24.03-LTS-SP4: curl

cURL is a computer software project providing a library (libcurl) and command-line tool (curl) for transferring data using various protocols. Security Fix(es):

When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL with a username(without a password), like `https://(CVE-2026-8926)

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-2026:23350-1 — Security update for curl

Security update for curl

UBUNTU-CVE-2026-8926

Affected: Ubuntu:25.10: curl, Ubuntu:26.04:LTS: curl

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.