ESB-2026.3081
PUBLISHED
CVSS 8.199999809265137 HIGH
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2026.3081
Security update for python312
30 March 2026
===========================================================================
AUSCERT Security Bulletin Summary
---------------------------------
Product: python312
Publisher: SUSE
Operating System: SUSE
Resolution: Patch/Upgrade
CVE Names: CVE-2025-12084 CVE-2025-13836 CVE-2025-13837
CVE-2026-2297 CVE-2025-6075 CVE-2025-11468
CVE-2025-15282 CVE-2026-0672 CVE-2026-0865
CVE-2026-1299
Original Bulletin:
https://www.suse.com/support/update/announcement/2026/suse-su-20261107-1
Comment: CVSS (Max): 8.2 CVE-2026-1299 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N)
CVSS Source: SUSE
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
EPSS (Max): 0.2% (36th) CVE-2026-0672 2026-03-29
- --------------------------BEGIN INCLUDED TEXT--------------------
Security update for python312
Announcement ID: SUSE-SU-2026:1107-1
Release Date: 2026-03-27T09:04:10Z
Rating: important
o bsc#1252974
o bsc#1254400
o bsc#1254401
o bsc#1254997
o bsc#1257029
References: o bsc#1257031
o bsc#1257042
o bsc#1257046
o bsc#1257181
o bsc#1259240
o CVE-2025-11468
o CVE-2025-12084
o CVE-2025-13836
o CVE-2025-13837
o CVE-2025-15282
Cross-References: o CVE-2025-6075
o CVE-2026-0672
o CVE-2026-0865
o CVE-2026-1299
o CVE-2026-2297
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
CVSS scores: o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o 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
o openSUSE Leap 15.6
Affected o SUSE Linux Enterprise Server 15 SP6
Products: o SUSE Linux Enterprise Server 15 SP6 LTSS
o 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:
o CVE-2025-6075: quadratic complexity in os.path.expandvars() (bsc#1252974).
o CVE-2025-11468: header injection with carefully crafted inputs (bsc#
1257029).
o CVE-2025-12084: quadratic complexity in xml.minidom node ID cache clearing
(bsc#1254997).
o CVE-2025-13836: potential memory denial of service in the http.client
module (bsc#1254400).
o CVE-2025-13837: potential memory denial of service in the plistlib module
(bsc#1254401).
o CVE-2025-15282: user-controlled data URLs parsed may allow injecting
headers (bsc#1257046).
o CVE-2026-0672: control characters in http.cookies.Morsel fields and values
(bsc#1257031).
o CVE-2026-0865: C0 control characters within wsgiref.headers.Headers fields,
values, and parameters (bsc#1257042).
o CVE-2026-1299: header injection when an email is serialized due to improper
newline quoting (bsc#1257181).
o 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 Benedikt 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
Benedikt 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:
o openSUSE Leap 15.6
zypper in -t patch SUSE-2026-1107=1 openSUSE-SLE-15.6-2026-1107=1
o SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1107=1
o 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:
o 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
o 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
o 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
o 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
o 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:
o https://www.suse.com/security/cve/CVE-2025-11468.html
o https://www.suse.com/security/cve/CVE-2025-12084.html
o https://www.suse.com/security/cve/CVE-2025-13836.html
o https://www.suse.com/security/cve/CVE-2025-13837.html
o https://www.suse.com/security/cve/CVE-2025-15282.html
o https://www.suse.com/security/cve/CVE-2025-6075.html
o https://www.suse.com/security/cve/CVE-2026-0672.html
o https://www.suse.com/security/cve/CVE-2026-0865.html
o https://www.suse.com/security/cve/CVE-2026-1299.html
o https://www.suse.com/security/cve/CVE-2026-2297.html
o https://bugzilla.suse.com/show_bug.cgi?id=1252974
o https://bugzilla.suse.com/show_bug.cgi?id=1254400
o https://bugzilla.suse.com/show_bug.cgi?id=1254401
o https://bugzilla.suse.com/show_bug.cgi?id=1254997
o https://bugzilla.suse.com/show_bug.cgi?id=1257029
o https://bugzilla.suse.com/show_bug.cgi?id=1257031
o https://bugzilla.suse.com/show_bug.cgi?id=1257042
o https://bugzilla.suse.com/show_bug.cgi?id=1257046
o https://bugzilla.suse.com/show_bug.cgi?id=1257181
o https://bugzilla.suse.com/show_bug.cgi?id=1259240
- --------------------------END INCLUDED TEXT----------------------
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NOTE: Third Party Rights
This security bulletin is provided as a service to AUSCERT's members. As
AUSCERT did not write the document quoted above, AUSCERT has had no control
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AUSCERT
The University of Queensland, Brisbane QLD 4072 Australia
e: auscert@auscert.org.au
t: +61 (0)7 3365 4417
Allies in Cyber Security
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