SUSE alert SUSE-SU-2026:3153-1 (nghttp2)

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OPENSUSE-SECURITY-UPDATES <null@suse.de>
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SUSE-SU-2026:3153-1: moderate: Security update for nghttp2
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Tue, 21 Jul 2026 20:32:59 -0000
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<178466597989.146.445565723919356649@1958684a8af1>
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Article
# Security update for nghttp2

Announcement ID: SUSE-SU-2026:3153-1  
Release Date: 2026-07-21T12:54:31Z  
Rating: moderate  
References:

  * bsc#1269489

  
Cross-References:

  * CVE-2026-58055

  
CVSS scores:

  * CVE-2026-58055 ( SUSE ):  6.3

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-58055 ( SUSE ):  5.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
  * CVE-2026-58055 ( NVD ):  6.3

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-58055 ( NVD ):  5.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N

  
Affected Products:

  * Basesystem Module 15-SP7
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for nghttp2 fixes the following issue

  * CVE-2026-58055: HTTP/1.1 Upgrade request can lead to HTTP request smuggling
    and cross-client response-queue poisoning (bsc#1269489).

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * openSUSE Leap 15.6  
    zypper in -t patch SUSE-2026-3153=1

  * Basesystem Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-3153=1

## Package List:

  * openSUSE Leap 15.6 (x86_64)
    * libnghttp2-14-32bit-1.40.0-150600.25.8.1
    * libnghttp2_asio1-32bit-1.40.0-150600.25.8.1
    * libnghttp2_asio1-32bit-debuginfo-1.40.0-150600.25.8.1
    * libnghttp2-14-32bit-debuginfo-1.40.0-150600.25.8.1
  * openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)
    * nghttp2-1.40.0-150600.25.8.1
    * python3-nghttp2-1.40.0-150600.25.8.1
    * libnghttp2-14-debuginfo-1.40.0-150600.25.8.1
    * nghttp2-debuginfo-1.40.0-150600.25.8.1
    * libnghttp2-devel-1.40.0-150600.25.8.1
    * libnghttp2_asio1-1.40.0-150600.25.8.1
    * libnghttp2-14-1.40.0-150600.25.8.1
    * libnghttp2_asio1-debuginfo-1.40.0-150600.25.8.1
    * python3-nghttp2-debuginfo-1.40.0-150600.25.8.1
    * nghttp2-python-debugsource-1.40.0-150600.25.8.1
    * nghttp2-debugsource-1.40.0-150600.25.8.1
    * libnghttp2_asio-devel-1.40.0-150600.25.8.1
  * openSUSE Leap 15.6 (aarch64_ilp32)
    * libnghttp2_asio1-64bit-debuginfo-1.40.0-150600.25.8.1
    * libnghttp2-14-64bit-debuginfo-1.40.0-150600.25.8.1
    * libnghttp2_asio1-64bit-1.40.0-150600.25.8.1
    * libnghttp2-14-64bit-1.40.0-150600.25.8.1
  * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * nghttp2-debuginfo-1.40.0-150600.25.8.1
    * libnghttp2_asio1-1.40.0-150600.25.8.1
    * libnghttp2_asio1-debuginfo-1.40.0-150600.25.8.1
    * nghttp2-debugsource-1.40.0-150600.25.8.1
    * libnghttp2_asio-devel-1.40.0-150600.25.8.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-58055.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1269489



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