Security update for cpp-httplib

Announcement ID: SUSE-SU-2026:20600-1
Release Date: 2026-03-02T10:20:20Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-53628 ( SUSE ): 8.8 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
  • CVE-2025-53628 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
  • CVE-2025-53628 ( NVD ): 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/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-2025-53628 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • CVE-2025-53629 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-53629 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-53629 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products:
  • SUSE Linux Enterprise Server 16.0
  • SUSE Linux Enterprise Server for SAP Applications 16.0

An update that solves two vulnerabilities can now be installed.

Description:

This update for cpp-httplib fixes the following issues:

  • CVE-2025-53629: header can allocate memory arbitrarily in the server, potentially leading to its exhaustion (bsc#1246471).
  • CVE-2025-53628: HTTP header smuggling due to insecure trailers merge (bsc#1246468).

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:

  • SUSE Linux Enterprise Server 16.0
    zypper in -t patch SUSE-SLES-16.0-333=1
  • SUSE Linux Enterprise Server for SAP Applications 16.0
    zypper in -t patch SUSE-SLES-16.0-333=1

Package List:

  • SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    • libcpp-httplib0_22-debuginfo-0.22.0-160000.4.1
    • cpp-httplib-debugsource-0.22.0-160000.4.1
    • libcpp-httplib0_22-0.22.0-160000.4.1
  • SUSE Linux Enterprise Server for SAP Applications 16.0 (ppc64le x86_64)
    • libcpp-httplib0_22-debuginfo-0.22.0-160000.4.1
    • cpp-httplib-debugsource-0.22.0-160000.4.1
    • libcpp-httplib0_22-0.22.0-160000.4.1

References: