RHSA-2026:92368 — Security Advisory

Red Hat Security Advisory: curl security, bug fix, and enhancement update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · October 29, 2026

Updated · November 4, 2026

Topic

An update for curl is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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: 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)
curl: Information disclosure due to uncleared proxy authentication state (CVE-2026-8927)

Bug Fix(es) and Enhancement(s):

Backport upstream curl PR #6852 ("h2: allow 100 streams by default") to RHEL 8 libcurl (JIRA:RHEL-232829)

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.