SUSE-SU-2026:23321-1: important: Security update for rmt-server
SLE-SECURITY-UPDATES
null at suse.de
Mon Aug 31 12:53:10 UTC 2026
# Security update for rmt-server
Announcement ID: SUSE-SU-2026:23321-1
Release Date: 2026-08-25T06:34:56Z
Rating: important
References:
* bsc#1261388
* bsc#1261398
* bsc#1261406
* bsc#1261417
* bsc#1261426
* bsc#1261436
* bsc#1261447
* bsc#1261458
* bsc#1261466
* bsc#1261471
* bsc#1262706
* bsc#1268149
* bsc#1268301
* bsc#1268303
* bsc#1268305
* bsc#1274715
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 ): 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-2026-34230 ( 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 ): 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-2026-34763 ( 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-2026-34785 ( 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 ): 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-2026-34829 ( 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-2026-34829 ( 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:
* SUSE Linux Enterprise Server 16.0
* SUSE Linux Enterprise Server for SAP applications 16.0
An update that solves 10 vulnerabilities and has six fixes can now be installed.
## Description:
This update for rmt-server fixes the following issues:
Update to version 3.1 (bsc#1274715).
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-2026-34230: rack: crafted `Accept-Encoding` headers can cause a denial
of service (bsc#1261388).
* 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:
* Version 3.1:
* Remove all errors and warnigs due to new Ruby and Ruby on Rails versions
* Version 2.28:
* Set arch to unknown for Rancher based products (jsc#SCC-759)
* Fix purge for large amount of systems (bsc#1262706)
* Change data type to `MEDIUMTEXT` in profiles table (bsc#1268305)
* Remove `proxy_byos` column
* Fix race condition when no system matches (bsc#1268301)
* Fix race condition for PAYG (bsc#1268149)
* Fix race condition to update a system (bsc#1268303)
* Version 2.27:
* Fix ReDoS vulnerability in `Addressable`
* Fixes out-of-bounds read vulnerability 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:
* SUSE Linux Enterprise Server 16.0
zypper in -t patch SUSE-SLES-16.0-1499=1
* SUSE Linux Enterprise Server for SAP applications 16.0
zypper in -t patch SUSE-SLES-16.0-1499=1
## Package List:
* SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
* rmt-server-pubcloud-3.1.0-160000.1.1
* rmt-server-debuginfo-3.1.0-160000.1.1
* rmt-server-config-3.1.0-160000.1.1
* rmt-server-3.1.0-160000.1.1
* SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
* rmt-server-3.1.0-160000.1.1
* rmt-server-pubcloud-3.1.0-160000.1.1
* rmt-server-debuginfo-3.1.0-160000.1.1
* rmt-server-config-3.1.0-160000.1.1
## 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
* https://bugzilla.suse.com/show_bug.cgi?id=1262706
* https://bugzilla.suse.com/show_bug.cgi?id=1268149
* https://bugzilla.suse.com/show_bug.cgi?id=1268301
* https://bugzilla.suse.com/show_bug.cgi?id=1268303
* https://bugzilla.suse.com/show_bug.cgi?id=1268305
* https://bugzilla.suse.com/show_bug.cgi?id=1274715
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