SUSE-SU-2026:1107-1: important: Security update for python312
SLE-SECURITY-UPDATES
null at suse.de
Fri Mar 27 16:31:57 UTC 2026
# Security update for python312
Announcement ID: SUSE-SU-2026:1107-1
Release Date: 2026-03-27T09:04:10Z
Rating: important
References:
* bsc#1252974
* bsc#1254400
* bsc#1254401
* bsc#1254997
* bsc#1257029
* bsc#1257031
* bsc#1257042
* bsc#1257046
* bsc#1257181
* bsc#1259240
Cross-References:
* CVE-2025-11468
* CVE-2025-12084
* CVE-2025-13836
* CVE-2025-13837
* CVE-2025-15282
* CVE-2025-6075
* CVE-2026-0672
* CVE-2026-0865
* CVE-2026-1299
* CVE-2026-2297
CVSS scores:
* CVE-2025-11468 ( SUSE ): 7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2025-11468 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
* CVE-2025-11468 ( NVD ): 5.7
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/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-2025-12084 ( SUSE ): 6.3
CVSS:4.0/AV:N/AC:L/AT:P/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-2025-12084 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
* CVE-2025-12084 ( NVD ): 6.3
CVSS:4.0/AV:N/AC:L/AT:P/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-2025-12084 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2025-13836 ( SUSE ): 6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/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-2025-13836 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
* CVE-2025-13836 ( NVD ): 6.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/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-2025-13836 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2025-13837 ( SUSE ): 2.1
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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
* CVE-2025-13837 ( SUSE ): 4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2025-13837 ( NVD ): 2.1
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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
* CVE-2025-13837 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
* CVE-2025-15282 ( SUSE ): 5.9
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2025-15282 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
* CVE-2025-15282 ( NVD ): 6.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/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
* CVE-2025-6075 ( SUSE ): 1.8
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/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-2025-6075 ( SUSE ): 2.5 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
* CVE-2025-6075 ( NVD ): 1.8
CVSS:4.0/AV:L/AC:L/AT:P/PR:H/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-2025-6075 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-0672 ( SUSE ): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-0672 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-0672 ( NVD ): 6.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/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-2026-0865 ( SUSE ): 5.9
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-0865 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
* CVE-2026-0865 ( NVD ): 5.9
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/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-2026-1299 ( SUSE ): 8.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-1299 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
* CVE-2026-1299 ( NVD ): 6.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:H/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-2026-2297 ( SUSE ): 5.7
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-2297 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-2297 ( NVD ): 5.7
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/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
Affected Products:
* openSUSE Leap 15.6
* SUSE Linux Enterprise Server 15 SP6
* SUSE Linux Enterprise Server 15 SP6 LTSS
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
An update that solves 10 vulnerabilities can now be installed.
## Description:
This update for python312 fixes the following issues:
Update to Python 3.12.13:
* CVE-2025-6075: quadratic complexity in os.path.expandvars() (bsc#1252974).
* CVE-2025-11468: header injection with carefully crafted inputs
(bsc#1257029).
* CVE-2025-12084: quadratic complexity in xml.minidom node ID cache clearing
(bsc#1254997).
* CVE-2025-13836: potential memory denial of service in the http.client module
(bsc#1254400).
* CVE-2025-13837: potential memory denial of service in the plistlib module
(bsc#1254401).
* CVE-2025-15282: user-controlled data URLs parsed may allow injecting headers
(bsc#1257046).
* CVE-2026-0672: control characters in http.cookies.Morsel fields and values
(bsc#1257031).
* CVE-2026-0865: C0 control characters within wsgiref.headers.Headers fields,
values, and parameters (bsc#1257042).
* CVE-2026-1299: header injection when an email is serialized due to improper
newline quoting (bsc#1257181).
* CVE-2026-2297: validation bypass via incorrectly handled hook in FileLoader
(bsc#1259240).
Changelog: \- gh-144125: BytesGenerator will now refuse to serialize (write)
headers that are unsafely folded or delimited; see verify_generated_headers.
(Contributed by Bas Bloemsaat and Petr Viktorin in gh-121650) (bsc#1257181,
CVE-2026-1299). \- gh-143935: Fixed a bug in the folding of comments when
flattening an email message using a modern email policy. Comments consisting of
a very long sequence of non-foldable characters could trigger a forced line wrap
that omitted the required leading space on the continuation line, causing the
remainder of the comment to be interpreted as a new header field. This enabled
header injection with carefully crafted inputs (bsc#1257029 CVE-2025-11468). \-
gh-143925: Reject control characters in data: URL media types (bsc#1257046,
CVE-2025-15282). \- gh-143919: Reject control characters in http.cookies.Morsel
fields and values (bsc#1257031, CVE-2026-0672). \- gh-143916: Reject C0 control
characters within wsgiref.headers.Headers fields, values, and parameters
(bsc#1257042, CVE-2026-0865). \- gh-142145: Remove quadratic behavior in
xml.minidom node ID cache clearing. In order to do this without breaking
existing users, we also add the ownerDocument attribute to xml.dom.minidom
elements and attributes created by directly instantiating the Element or Attr
class. Note that this way of creating nodes is not supported; creator functions
like xml.dom.Document.documentElement() should be used instead (bsc#1254997,
CVE-2025-12084). \- gh-137836: Add support of the "plaintext" element, RAWTEXT
elements "xmp", "iframe", "noembed" and "noframes", and optionally RAWTEXT
element "noscript" in html.parser.HTMLParser. \- gh-136063: email.message:
ensure linear complexity for legacy HTTP parameters parsing. Patch by Bénédikt
Tran. \- gh-136065: Fix quadratic complexity in os.path.expandvars()
(bsc#1252974, CVE-2025-6075). \- gh-119451: Fix a potential memory denial of
service in the http.client module. When connecting to a malicious server, it
could cause an arbitrary amount of memory to be allocated. This could have led
to symptoms including a MemoryError, swapping, out of memory (OOM) killed
processes or containers, or even system crashes (CVE-2025-13836, bsc#1254400).
\- gh-119452: Fix a potential memory denial of service in the http.server
module. When a malicious user is connected to the CGI server on Windows, it
could cause an arbitrary amount of memory to be allocated. This could have led
to symptoms including a MemoryError, swapping, out of memory (OOM) killed
processes or containers, or even system crashes. \- gh-119342: Fix a potential
memory denial of service in the plistlib module. When reading a Plist file
received from untrusted source, it could cause an arbitrary amount of memory to
be allocated. This could have led to symptoms including a MemoryError, swapping,
out of memory (OOM) killed processes or containers, or even system crashes
(bsc#1254401, CVE-2025-13837). \- Library \- gh-144833: Fixed a use-after-free
in ssl when SSL_new() returns NULL in newPySSLSocket(). The error was reported
via a dangling pointer after the object had already been freed. \- gh-144363:
Update bundled libexpat to 2.7.4 \- gh-90949: Add
SetAllocTrackerActivationThreshold() and SetAllocTrackerMaximumAmplification()
to xmlparser objects to prevent use of disproportional amounts of dynamic memory
from within an Expat parser. Patch by Bénédikt Tran.
## 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 15.6
zypper in -t patch SUSE-2026-1107=1 openSUSE-SLE-15.6-2026-1107=1
* SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1107=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1107=1
## Package List:
* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
* python312-testsuite-3.12.13-150600.3.48.1
* libpython3_12-1_0-3.12.13-150600.3.48.1
* python312-dbm-3.12.13-150600.3.48.1
* python312-doc-devhelp-3.12.13-150600.3.48.1
* python312-curses-debuginfo-3.12.13-150600.3.48.1
* python312-base-3.12.13-150600.3.48.1
* python312-idle-3.12.13-150600.3.48.1
* python312-testsuite-debuginfo-3.12.13-150600.3.48.1
* python312-devel-3.12.13-150600.3.48.1
* python312-tools-3.12.13-150600.3.48.1
* python312-doc-3.12.13-150600.3.48.1
* python312-debugsource-3.12.13-150600.3.48.1
* python312-tk-3.12.13-150600.3.48.1
* python312-debuginfo-3.12.13-150600.3.48.1
* python312-dbm-debuginfo-3.12.13-150600.3.48.1
* python312-tk-debuginfo-3.12.13-150600.3.48.1
* python312-curses-3.12.13-150600.3.48.1
* libpython3_12-1_0-debuginfo-3.12.13-150600.3.48.1
* python312-base-debuginfo-3.12.13-150600.3.48.1
* python312-core-debugsource-3.12.13-150600.3.48.1
* python312-3.12.13-150600.3.48.1
* openSUSE Leap 15.6 (x86_64)
* python312-32bit-3.12.13-150600.3.48.1
* libpython3_12-1_0-32bit-debuginfo-3.12.13-150600.3.48.1
* python312-base-32bit-debuginfo-3.12.13-150600.3.48.1
* python312-32bit-debuginfo-3.12.13-150600.3.48.1
* libpython3_12-1_0-32bit-3.12.13-150600.3.48.1
* python312-base-32bit-3.12.13-150600.3.48.1
* openSUSE Leap 15.6 (aarch64_ilp32)
* python312-base-64bit-debuginfo-3.12.13-150600.3.48.1
* libpython3_12-1_0-64bit-debuginfo-3.12.13-150600.3.48.1
* python312-base-64bit-3.12.13-150600.3.48.1
* libpython3_12-1_0-64bit-3.12.13-150600.3.48.1
* python312-64bit-debuginfo-3.12.13-150600.3.48.1
* python312-64bit-3.12.13-150600.3.48.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
* python312-curses-debuginfo-3.12.13-150600.3.48.1
* python312-base-3.12.13-150600.3.48.1
* python312-base-debuginfo-3.12.13-150600.3.48.1
* python312-debugsource-3.12.13-150600.3.48.1
* python312-idle-3.12.13-150600.3.48.1
* python312-tk-3.12.13-150600.3.48.1
* python312-devel-3.12.13-150600.3.48.1
* python312-debuginfo-3.12.13-150600.3.48.1
* python312-dbm-debuginfo-3.12.13-150600.3.48.1
* python312-tk-debuginfo-3.12.13-150600.3.48.1
* python312-tools-3.12.13-150600.3.48.1
* python312-core-debugsource-3.12.13-150600.3.48.1
* libpython3_12-1_0-3.12.13-150600.3.48.1
* python312-curses-3.12.13-150600.3.48.1
* libpython3_12-1_0-debuginfo-3.12.13-150600.3.48.1
* python312-3.12.13-150600.3.48.1
* python312-dbm-3.12.13-150600.3.48.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
* python312-curses-debuginfo-3.12.13-150600.3.48.1
* python312-base-3.12.13-150600.3.48.1
* python312-base-debuginfo-3.12.13-150600.3.48.1
* python312-debugsource-3.12.13-150600.3.48.1
* python312-idle-3.12.13-150600.3.48.1
* python312-tk-3.12.13-150600.3.48.1
* python312-devel-3.12.13-150600.3.48.1
* python312-debuginfo-3.12.13-150600.3.48.1
* python312-dbm-debuginfo-3.12.13-150600.3.48.1
* python312-tk-debuginfo-3.12.13-150600.3.48.1
* python312-tools-3.12.13-150600.3.48.1
* python312-core-debugsource-3.12.13-150600.3.48.1
* libpython3_12-1_0-3.12.13-150600.3.48.1
* python312-curses-3.12.13-150600.3.48.1
* libpython3_12-1_0-debuginfo-3.12.13-150600.3.48.1
* python312-3.12.13-150600.3.48.1
* python312-dbm-3.12.13-150600.3.48.1
## References:
* https://www.suse.com/security/cve/CVE-2025-11468.html
* https://www.suse.com/security/cve/CVE-2025-12084.html
* https://www.suse.com/security/cve/CVE-2025-13836.html
* https://www.suse.com/security/cve/CVE-2025-13837.html
* https://www.suse.com/security/cve/CVE-2025-15282.html
* https://www.suse.com/security/cve/CVE-2025-6075.html
* https://www.suse.com/security/cve/CVE-2026-0672.html
* https://www.suse.com/security/cve/CVE-2026-0865.html
* https://www.suse.com/security/cve/CVE-2026-1299.html
* https://www.suse.com/security/cve/CVE-2026-2297.html
* https://bugzilla.suse.com/show_bug.cgi?id=1252974
* https://bugzilla.suse.com/show_bug.cgi?id=1254400
* https://bugzilla.suse.com/show_bug.cgi?id=1254401
* https://bugzilla.suse.com/show_bug.cgi?id=1254997
* https://bugzilla.suse.com/show_bug.cgi?id=1257029
* https://bugzilla.suse.com/show_bug.cgi?id=1257031
* https://bugzilla.suse.com/show_bug.cgi?id=1257042
* https://bugzilla.suse.com/show_bug.cgi?id=1257046
* https://bugzilla.suse.com/show_bug.cgi?id=1257181
* https://bugzilla.suse.com/show_bug.cgi?id=1259240
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