SUSE-SU-2026:23138-1: important: Security update for php-composer2

Fri Aug 14 12:43:55 UTC 2026

# Security update for php-composer2

Announcement ID: SUSE-SU-2026:23138-1  
Release Date: 2026-08-03T21:09:33Z  
Rating: important  
References:

  * bsc#1271122
  * bsc#1271129
  * bsc#1271151
  * bsc#1271504
  * bsc#1271729

Cross-References:

  * CVE-2025-67746
  * CVE-2026-40176
  * CVE-2026-40261
  * CVE-2026-45793
  * CVE-2026-59946
  * CVE-2026-59947
  * CVE-2026-59948

CVSS scores:

  * CVE-2025-67746 ( SUSE ):  2.0
    CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2025-67746 ( SUSE ):  3.3 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
  * CVE-2025-67746 ( NVD ):  1.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/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-2025-67746 ( NVD ):  4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-40176 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-40176 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-40176 ( NVD ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-40261 ( SUSE ):  7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-40261 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-40261 ( NVD ):  8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-45793 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
  * CVE-2026-45793 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-59946 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-59946 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
  * CVE-2026-59946 ( NVD ):  6.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
  * CVE-2026-59947 ( SUSE ):  5.7
    CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-59947 ( SUSE ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-59947 ( NVD ):  4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-59948 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-59948 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
  * CVE-2026-59948 ( NVD ):  7.0 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Products:

  * SUSE Linux Enterprise Server for SAP applications 16.0

An update that solves seven vulnerabilities can now be installed.

## Description:

This update for php-composer2 fixes the following issues:

  * CVE-2026-45793: Github Actions issued `GITHUB_TOKEN` disclosure in GitHub
    Actions logs (bsc#1271504).
  * CVE-2026-59946: path traversal in package `bin` field lets dependencies
    `chmod` arbitrary host files (bsc#1271151).
  * CVE-2026-59947: URL-embedded HTTP-Basic username leaks to verbose logs
    (bsc#1271129).
  * CVE-2026-59948: arbitrary file write outside `vendor`directory via malicious
    transitive package name (bsc#1271122).

Changes for php-composer2:

  * fix byte-swapped signature on s390x can cause broken or unsupported
    signature (bsc#1271729).

## 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 for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-1425=1

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (noarch)
    * php-composer2-2.8.9-160000.4.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-67746.html
  * https://www.suse.com/security/cve/CVE-2026-40176.html
  * https://www.suse.com/security/cve/CVE-2026-40261.html
  * https://www.suse.com/security/cve/CVE-2026-45793.html
  * https://www.suse.com/security/cve/CVE-2026-59946.html
  * https://www.suse.com/security/cve/CVE-2026-59947.html
  * https://www.suse.com/security/cve/CVE-2026-59948.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1271122
  * https://bugzilla.suse.com/show_bug.cgi?id=1271129
  * https://bugzilla.suse.com/show_bug.cgi?id=1271151
  * https://bugzilla.suse.com/show_bug.cgi?id=1271504
  * https://bugzilla.suse.com/show_bug.cgi?id=1271729

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