SUSE-SU-2026:22082-1: important: Security update for erlang

Mon Jun 15 08:33:13 UTC 2026

# Security update for erlang

Announcement ID: SUSE-SU-2026:22082-1  
Release Date: 2026-06-05T11:01:03Z  
Rating: important  
References:

  * bsc#1244642
  * bsc#1262503
  * bsc#1266448
  * bsc#1266449
  * bsc#1266466

Cross-References:

  * CVE-2025-4748
  * CVE-2026-32147
  * CVE-2026-42789
  * CVE-2026-42790
  * CVE-2026-42791

CVSS scores:

  * CVE-2025-4748 ( SUSE ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L
  * CVE-2025-4748 ( SUSE ):  4.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
  * CVE-2025-4748 ( NVD ):  4.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L/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-2026-32147 ( SUSE ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-32147 ( SUSE ):  4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-32147 ( NVD ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/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-2026-32147 ( NVD ):  4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-42789 ( 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-2026-42789 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-42789 ( NVD ):  7.0
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:H/SI:H/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-2026-42789 ( NVD ):  4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-42790 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-42790 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-42790 ( NVD ):  7.6
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/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-2026-42790 ( NVD ):  8.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
  * CVE-2026-42791 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-42791 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-42791 ( NVD ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:L/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-2026-42791 ( NVD ):  3.7 CVSS:3.1/AV:N/AC:H/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 five vulnerabilities can now be installed.

## Description:

This update for erlang fixes the following issues

  * CVE-2025-4748: improper limitation of a pathname may lead to path traversal
    (bsc#1244642).
  * CVE-2026-32147: Improper Limitation of a Pathname to a Restricted Directory
    ('Path Traversal') in SFTP chroot (bsc#1262503).
  * CVE-2026-42789: `public_key` application accepts non-CA certificates as
    intermediate issuers and this enables chain forgery (bsc#1266449).
  * CVE-2026-42790: Name Constraints and Subject CommonName fallback in TLS
    hostname verification allows for certificate forgery by MITM attacker
    (bsc#1266466).
  * CVE-2026-42791: OCSP response verification in the `public_key` application
    does not check the validity period of the OCSP responder certificate and
    allows for OCSP response response forgery (bsc#1266448).

## 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-16.0-892=1

  * SUSE Linux Enterprise Server for SAP applications 16.0  
    zypper in -t patch SUSE-SLES-16.0-892=1

## Package List:

  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * erlang-epmd-27.1.3-160000.5.1
    * erlang-epmd-debuginfo-27.1.3-160000.5.1
    * erlang-debugsource-27.1.3-160000.5.1
    * erlang-debuginfo-27.1.3-160000.5.1
    * erlang-27.1.3-160000.5.1
  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * erlang-epmd-27.1.3-160000.5.1
    * erlang-epmd-debuginfo-27.1.3-160000.5.1
    * erlang-debugsource-27.1.3-160000.5.1
    * erlang-debuginfo-27.1.3-160000.5.1
    * erlang-27.1.3-160000.5.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-4748.html
  * https://www.suse.com/security/cve/CVE-2026-32147.html
  * https://www.suse.com/security/cve/CVE-2026-42789.html
  * https://www.suse.com/security/cve/CVE-2026-42790.html
  * https://www.suse.com/security/cve/CVE-2026-42791.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1244642
  * https://bugzilla.suse.com/show_bug.cgi?id=1262503
  * https://bugzilla.suse.com/show_bug.cgi?id=1266448
  * https://bugzilla.suse.com/show_bug.cgi?id=1266449
  * https://bugzilla.suse.com/show_bug.cgi?id=1266466

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