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