SUSE alert SUSE-SU-2026:1745-1 (rmt-server)

From:
             
 
SLE-SECURITY-UPDATES <null@suse.de>
To:
             
 
sle-security-updates@lists.suse.com
Subject:
             
 
SUSE-SU-2026:1745-1: important: Security update for rmt-server
Date:
             
 
Thu, 07 May 2026 16:31:19 -0000
Message-ID:
             
 
<177817147998.210.1874468749605153039@2df5abbbd056>


# Security update for rmt-server

Announcement ID: SUSE-SU-2026:1745-1  
Release Date: 2026-05-07T07:22:43Z  
Rating: important  
References:

  * 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:

  * Public Cloud Module 15-SP7
  * Server Applications Module 15-SP7
  * SUSE Linux Enterprise Real Time 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves 10 vulnerabilities can now be installed.

## Description:

This update for rmt-server fixes the following issues:

Update to version 2.27.

Security issues fixed:

  * CVE-2026-26961: rack: greedy multipart boundary parsing can lead to parser
    differentials and WAF bypass (bsc#1261398).
  * CVE-2026-26962: rack: improper unfolding of folded multipart headers can
    lead to downstream header injection and response splitting(bsc#1261471).
  * CVE-2026-34763: rack: unescaped regex interpolation of configured root path
    can lead to root directory disclosure (bsc#1261406).
  * CVE-2026-34785: rack: prefix matching logic can lead to the exposure of
    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: missing individual byte range limit checks when
    parsing HTTP `Range` headers can lead to excessive resource consumption and
    a denial of service (bsc#1261436).
  * CVE-2026-34829: rack: multipart parsing without `Content-Length` header can
    lead to unbounded chunked file uploads and a denial of service
    (bsc#1261447).
  * CVE-2026-34230: rack: quadratic complexity when processing of wildcard
    `Accept-Encoding` headers can lead to a denial of service (bsc#1261388).
  * CVE-2026-34830: rack: improper sanitization of the `X-Accel-Mapping` request
    header can lead to the exposure of unintended files via `X-Accel-Redirect`
    (bsc#1261458).
  * CVE-2026-34831: rack: `Content-Length` header and body byte size mismatch
    when creating error responses can lead to incorrect HTTP response framing
    (bsc#1261466).

Other updates and bugfixes:

  * Fix ReDoS in `Addressable`.
  * Fix out-of-bounds read in `rdiscount`.

## 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:

  * Public Cloud Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Public-Cloud-15-SP7-2026-1745=1

  * Server Applications Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-1745=1

## Package List:

  * Public Cloud Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * rmt-server-debuginfo-2.27-150700.3.20.1
    * rmt-server-pubcloud-2.27-150700.3.20.1
    * rmt-server-debugsource-2.27-150700.3.20.1
  * Server Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * rmt-server-config-2.27-150700.3.20.1
    * rmt-server-debuginfo-2.27-150700.3.20.1
    * rmt-server-debugsource-2.27-150700.3.20.1
    * rmt-server-2.27-150700.3.20.1

## 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=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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