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SUSE alert SUSE-SU-2026:2487-1 (rmt-server)



From:
              OPENSUSE-SECURITY-UPDATES <null@suse.de>


To:
              security-announce@lists.opensuse.org


Subject:
              SUSE-SU-2026:2487-1: important: Security update for rmt-server


Date:
              Mon, 22 Jun 2026 16:33:24 -0000


Message-ID:
              <178214600466.43.13641751854790844300@41cefdcbd46a>


Archive-link:
              Article


# Security update for rmt-server

Announcement ID: SUSE-SU-2026:2487-1  
Release Date: 2026-06-22T12:08:32Z  
Rating: important  
References:

  * bsc#1246976
  * bsc#1261388
  * bsc#1261398
  * bsc#1261406
  * bsc#1261417
  * bsc#1261426
  * bsc#1261436
  * bsc#1261447
  * bsc#1261458
  * bsc#1261466
  * bsc#1261471

  
Cross-References:

  * CVE-2026-26961
  * CVE-2026-26962
  * CVE-2026-34230
  * CVE-2026-34763
  * CVE-2026-34785
  * CVE-2026-34786
  * CVE-2026-34826
  * CVE-2026-34829
  * CVE-2026-34830
  * CVE-2026-34831

  
CVSS scores:

  * CVE-2026-26961 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-26961 ( SUSE ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-26961 ( NVD ):  3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-26961 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-26962 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-26962 ( SUSE ):  4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-26962 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-26962 ( NVD ):  4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-34230 ( 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-2026-34230 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-34230 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34230 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-34763 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-34763 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-34763 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  * CVE-2026-34785 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-34785 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-34785 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-34786 ( SUSE ):  6.9
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-34786 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-34786 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
  * CVE-2026-34826 ( 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-2026-34826 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-34826 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34826 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-34829 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-34829 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34829 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34830 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-34830 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-34830 ( NVD ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-34830 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-34831 ( SUSE ):  6.3
    CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-34831 ( SUSE ):  4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-34831 ( NVD ):  4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
  * CVE-2026-34831 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

  
Affected Products:

  * openSUSE Leap 15.5
  * Public Cloud Module 15-SP5
  * Public Cloud Module 15-SP6
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6

  
  
An update that solves 10 vulnerabilities and has one security fix can now be
installed.

## Description:

This update for rmt-server fixes the following issues

  * CVE-2026-26961: rack: mismatch in header handling can allow to smuggle
    multipart content (bsc#1261398).
  * CVE-2026-26962: rack: improper unfolding of folded multipart headers can
    lead to header injection or response splitting (bsc#1261471).
  * CVE-2026-34230: rack: crafted Accept-Encoding header can cause a denial of
    service (bsc#1261388).
  * CVE-2026-34763: rack: failing of the prefix stripping can lead to
    information disclosure (bsc#1261406).
  * CVE-2026-34785: rack: prefix matching can expose unintended files under the
    static root (bsc#1261417).
  * CVE-2026-34786: rack: URL-encoded path mismatch can lead to `header_rules`
    bypass (bsc#1261426).
  * CVE-2026-34826: rack: multipart byte range processing can allow denial of
    service (bsc#1261436).
  * CVE-2026-34829: rack: multipart parsing without `Content-Length` header
    allows unbounded chunked file uploads (bsc#1261447).
  * CVE-2026-34830: rack: crafted `X-Accel-Mapping`headers can lead to regex
    injection (bsc#1261458).
  * CVE-2026-34831: rack: `Content-Length` mismatch can lead to incorrectly
    framed error responses (bsc#1261466).

Changes for rmt-server:

  * Updated to version 2.27

## 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 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2487=1

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-2487=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-2487=1

  * Public Cloud Module 15-SP5  
    zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP5-2026-2487=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-2487=1

  * Public Cloud Module 15-SP6  
    zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP6-2026-2487=1

  * openSUSE Leap 15.5  
    zypper in -t patch SUSE-2026-2487=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-2487=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2487=1

## Package List:

  * Public Cloud Module 15-SP5 (aarch64 ppc64le s390x x86_64)
    * rmt-server-debugsource-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-pubcloud-2.27-150500.3.47.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * rmt-server-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-config-2.27-150500.3.47.1
    * rmt-server-debugsource-2.27-150500.3.47.1
  * openSUSE Leap 15.5 (aarch64 ppc64le s390x x86_64)
    * rmt-server-debugsource-2.27-150500.3.47.1
    * rmt-server-2.27-150500.3.47.1
    * rmt-server-config-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-pubcloud-2.27-150500.3.47.1
  * Public Cloud Module 15-SP6 (aarch64 ppc64le s390x x86_64)
    * rmt-server-debugsource-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-pubcloud-2.27-150500.3.47.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * rmt-server-debugsource-2.27-150500.3.47.1
    * rmt-server-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-config-2.27-150500.3.47.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * rmt-server-debugsource-2.27-150500.3.47.1
    * rmt-server-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-config-2.27-150500.3.47.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * rmt-server-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-config-2.27-150500.3.47.1
    * rmt-server-debugsource-2.27-150500.3.47.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * rmt-server-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-config-2.27-150500.3.47.1
    * rmt-server-debugsource-2.27-150500.3.47.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * rmt-server-2.27-150500.3.47.1
    * rmt-server-debuginfo-2.27-150500.3.47.1
    * rmt-server-config-2.27-150500.3.47.1
    * rmt-server-debugsource-2.27-150500.3.47.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-26961.html
  * https://www.suse.com/security/cve/CVE-2026-26962.html
  * https://www.suse.com/security/cve/CVE-2026-34230.html
  * https://www.suse.com/security/cve/CVE-2026-34763.html
  * https://www.suse.com/security/cve/CVE-2026-34785.html
  * https://www.suse.com/security/cve/CVE-2026-34786.html
  * https://www.suse.com/security/cve/CVE-2026-34826.html
  * https://www.suse.com/security/cve/CVE-2026-34829.html
  * https://www.suse.com/security/cve/CVE-2026-34830.html
  * https://www.suse.com/security/cve/CVE-2026-34831.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1246976
  * https://bugzilla.suse.com/show_bug.cgi?id=1261388
  * https://bugzilla.suse.com/show_bug.cgi?id=1261398
  * https://bugzilla.suse.com/show_bug.cgi?id=1261406
  * https://bugzilla.suse.com/show_bug.cgi?id=1261417
  * https://bugzilla.suse.com/show_bug.cgi?id=1261426
  * https://bugzilla.suse.com/show_bug.cgi?id=1261436
  * https://bugzilla.suse.com/show_bug.cgi?id=1261447
  * https://bugzilla.suse.com/show_bug.cgi?id=1261458
  * https://bugzilla.suse.com/show_bug.cgi?id=1261466
  * https://bugzilla.suse.com/show_bug.cgi?id=1261471





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