SUSE-SU-2026:20090-1: critical: Security update for cpp-httplib

[SLE-SECURITY-UPDATES]

# Security update for cpp-httplib

Announcement ID: SUSE-SU-2026:20090-1  
Release Date: 2026-01-15T22:11:25Z  
Rating: critical  
References:

  * bsc#1254734
  * bsc#1254735

  
Cross-References:

  * CVE-2025-66570
  * CVE-2025-66577

  
CVSS scores:

  * CVE-2025-66570 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-66570 ( SUSE ):  10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
  * CVE-2025-66570 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2025-66570 ( NVD ):  10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
  * CVE-2025-66577 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2025-66577 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2025-66577 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

  
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-2025-66570: IP spoofing, log poisoning, and authorization bypass via
    header shadowing due to acceptance and parsing of client-controlled injected
    HTTP headers in incoming requests (bsc#1254734).
  * CVE-2025-66577: access and error log poisoning with spoofed client IPs due
    to unconditional acceptance of client-controlled `X-Forwarded-For` and
    `X-Real-IP` headers (bsc#1254735).

## 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-16.0-150=1

  * SUSE Linux Enterprise Server for SAP Applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-150=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * cpp-httplib-debugsource-0.22.0-160000.3.1
    * libcpp-httplib0_22-0.22.0-160000.3.1
    * libcpp-httplib0_22-debuginfo-0.22.0-160000.3.1
  * SUSE Linux Enterprise Server for SAP Applications 16.0 (ppc64le x86_64)
    * cpp-httplib-debugsource-0.22.0-160000.3.1
    * libcpp-httplib0_22-0.22.0-160000.3.1
    * libcpp-httplib0_22-debuginfo-0.22.0-160000.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-66570.html
  * https://www.suse.com/security/cve/CVE-2025-66577.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1254734
  * https://bugzilla.suse.com/show_bug.cgi?id=1254735

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.suse.com/pipermail/sle-security-updates/attachments/20260120/59404ccd/attachment.htm>