SUSE-SU-2026:2010-1: important: Security update for erlang26

SLE-UPDATES null at suse.de
Tue May 19 16:30:17 UTC 2026 

# Security update for erlang26

Announcement ID: SUSE-SU-2026:2010-1  
Release Date: 2026-05-19T11:56:06Z  
Rating: important  
References:

  * bsc#1258663
  * bsc#1259681
  * bsc#1259682
  * bsc#1259687
  * bsc#1261728
  * bsc#1262503
  * jsc#PED-15166

  
Cross-References:

  * CVE-2026-21620
  * CVE-2026-23941
  * CVE-2026-23942
  * CVE-2026-23943
  * CVE-2026-28808
  * CVE-2026-32147

  
CVSS scores:

  * CVE-2026-21620 ( SUSE ):  7.6
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-21620 ( SUSE ):  8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-21620 ( NVD ):  2.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/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-2026-23941 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-23941 ( SUSE ):  4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-23941 ( NVD ):  7.0
    CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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-2026-23942 ( SUSE ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-23942 ( SUSE ):  5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-23942 ( NVD ):  5.3
    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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-2026-23943 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
  * CVE-2026-23943 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-23943 ( NVD ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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-2026-28808 ( SUSE ):  9.1
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-28808 ( SUSE ):  7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
  * CVE-2026-28808 ( NVD ):  8.3
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/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-2026-28808 ( NVD ):  9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  * 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

  
Affected Products:

  * openSUSE Leap 15.3
  * Server Applications Module 15-SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves six vulnerabilities and contains one feature can now be
installed.

## Description:

This update for erlang26 fixes the following issues

Security issues:

  * CVE-2026-21620: remote arbitrary read/write via TFTP relative path traversal
    (bsc#1258663).
  * CVE-2026-23941: HTTP Request Smuggling in Erlang OTP (bsc#1259687).
  * CVE-2026-23942: path traversal vulnerability in Erlang OTP (bsc#1259681).
  * CVE-2026-23943: denial of service due to improper handling of highly
    compressed data in Erlang OTP ssh (bsc#1259682).
  * CVE-2026-28808: incorrect authorization can lead to unauthenticated access
    to protected CGI scripts (bsc#1261728).
  * CVE-2026-32147: Improper Limitation of a Pathname to a Restricted Directory
    ('Path Traversal') in SFTP chroot (bsc#1262503).

Non security issue:

  * Fixes for FIPS mode (jsc#PED-15166.

## 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 15.3  
    zypper in -t patch SUSE-2026-2010=1

  * Server Applications Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-2010=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2010=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2010=1

## Package List:

  * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
    * erlang26-diameter-src-26.2.1-150300.7.25.1
    * erlang26-et-src-26.2.1-150300.7.25.1
    * erlang26-diameter-26.2.1-150300.7.25.1
    * erlang26-observer-src-26.2.1-150300.7.25.1
    * erlang26-debugger-src-26.2.1-150300.7.25.1
    * erlang26-reltool-src-26.2.1-150300.7.25.1
    * erlang26-dialyzer-debuginfo-26.2.1-150300.7.25.1
    * erlang26-jinterface-src-26.2.1-150300.7.25.1
    * erlang26-src-26.2.1-150300.7.25.1
    * erlang26-dialyzer-26.2.1-150300.7.25.1
    * erlang26-debugger-26.2.1-150300.7.25.1
    * erlang26-et-26.2.1-150300.7.25.1
    * erlang26-reltool-26.2.1-150300.7.25.1
    * erlang26-dialyzer-src-26.2.1-150300.7.25.1
    * erlang26-wx-debuginfo-26.2.1-150300.7.25.1
    * erlang26-debuginfo-26.2.1-150300.7.25.1
    * erlang26-debugsource-26.2.1-150300.7.25.1
    * erlang26-doc-26.2.1-150300.7.25.1
    * erlang26-epmd-debuginfo-26.2.1-150300.7.25.1
    * erlang26-epmd-26.2.1-150300.7.25.1
    * erlang26-jinterface-26.2.1-150300.7.25.1
    * erlang26-26.2.1-150300.7.25.1
    * erlang26-wx-26.2.1-150300.7.25.1
    * erlang26-wx-src-26.2.1-150300.7.25.1
    * erlang26-observer-26.2.1-150300.7.25.1
  * Server Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * erlang26-26.2.1-150300.7.25.1
    * erlang26-epmd-26.2.1-150300.7.25.1
    * erlang26-debuginfo-26.2.1-150300.7.25.1
    * erlang26-debugsource-26.2.1-150300.7.25.1
    * erlang26-epmd-debuginfo-26.2.1-150300.7.25.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * erlang26-26.2.1-150300.7.25.1
    * erlang26-epmd-26.2.1-150300.7.25.1
    * erlang26-debuginfo-26.2.1-150300.7.25.1
    * erlang26-debugsource-26.2.1-150300.7.25.1
    * erlang26-epmd-debuginfo-26.2.1-150300.7.25.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * erlang26-26.2.1-150300.7.25.1
    * erlang26-epmd-26.2.1-150300.7.25.1
    * erlang26-debuginfo-26.2.1-150300.7.25.1
    * erlang26-debugsource-26.2.1-150300.7.25.1
    * erlang26-epmd-debuginfo-26.2.1-150300.7.25.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-21620.html
  * https://www.suse.com/security/cve/CVE-2026-23941.html
  * https://www.suse.com/security/cve/CVE-2026-23942.html
  * https://www.suse.com/security/cve/CVE-2026-23943.html
  * https://www.suse.com/security/cve/CVE-2026-28808.html
  * https://www.suse.com/security/cve/CVE-2026-32147.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1258663
  * https://bugzilla.suse.com/show_bug.cgi?id=1259681
  * https://bugzilla.suse.com/show_bug.cgi?id=1259682
  * https://bugzilla.suse.com/show_bug.cgi?id=1259687
  * https://bugzilla.suse.com/show_bug.cgi?id=1261728
  * https://bugzilla.suse.com/show_bug.cgi?id=1262503
  * https://jira.suse.com/browse/PED-15166

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