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RLSA-2026:55804

Security Mirrored from RHSA-2026:55804
Issued at: 2026-08-18
Updated at: 2026-08-18

Advisory content derived from Red Hat RHSA-2026:55804, © Red Hat, Inc., used under CC BY 4.0, with modifications.

Synopsis

Moderate: nghttp2 security update



Description

libnghttp2 is a library implementing the Hypertext Transfer Protocol version 2 (HTTP/2) protocol in C.

Security Fix(es):

* nghttp2: nghttp2: HTTP Request/Response Smuggling and Response-Queue Poisoning via ambiguous HTTP/1.1 Upgrade requests (CVE-2026-58055)

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.



Affected products

Rocky Linux 8 aarch64 Rocky Linux 8 x86_64

Fixes

2493954

CVEs

CVE-2026-58055

Affected packages

Rocky Linux 8 aarch64 - BaseOS

libnghttp2-0:1.33.0-6.el8_10.3.aarch64.rpm libnghttp2-debuginfo-0:1.33.0-6.el8_10.3.aarch64.rpm nghttp2-0:1.33.0-6.el8_10.3.src.rpm nghttp2-debuginfo-0:1.33.0-6.el8_10.3.aarch64.rpm nghttp2-debugsource-0:1.33.0-6.el8_10.3.aarch64.rpm

Rocky Linux 8 x86_64 - BaseOS

libnghttp2-0:1.33.0-6.el8_10.3.i686.rpm libnghttp2-0:1.33.0-6.el8_10.3.x86_64.rpm libnghttp2-debuginfo-0:1.33.0-6.el8_10.3.i686.rpm libnghttp2-debuginfo-0:1.33.0-6.el8_10.3.x86_64.rpm nghttp2-0:1.33.0-6.el8_10.3.src.rpm nghttp2-debuginfo-0:1.33.0-6.el8_10.3.i686.rpm nghttp2-debuginfo-0:1.33.0-6.el8_10.3.x86_64.rpm nghttp2-debugsource-0:1.33.0-6.el8_10.3.i686.rpm nghttp2-debugsource-0:1.33.0-6.el8_10.3.x86_64.rpm

Rocky Linux 8 aarch64 - PowerTools

libnghttp2-devel-0:1.33.0-6.el8_10.3.aarch64.rpm nghttp2-0:1.33.0-6.el8_10.3.aarch64.rpm

Rocky Linux 8 x86_64 - PowerTools

libnghttp2-devel-0:1.33.0-6.el8_10.3.i686.rpm libnghttp2-devel-0:1.33.0-6.el8_10.3.x86_64.rpm nghttp2-0:1.33.0-6.el8_10.3.x86_64.rpm