SUSE-SU-2026:3870-1: python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSS SUSE Linux Enterprise
Published
Published 28-08-2026Last modified 10-09-2026
Vulnerability summary
SUSE-SU-2026:3870-1 is a vulnerability in python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSS SUSE Linux Enterprise with no CVSS score yet.
Priority
Insufficient evidence
No CVSS vector published; no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?CVSS score
Not scored
010
No CVSS score recordedEPSS scoreNot scoredRisk metrics not yet published.
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded
Timeline
- 28-08-2026PublishedVulnerability first disclosed.
- 10-09-2026Last modifiedVulnerability information updated.
Description
Security update for python312 This update for python312 fixes the following issues: - Regression in `http.cookies` (bsc#1263083).
CVSS metrics
Risk metrics not yet published.
EPSS trend
No EPSS score has been published for this record yet.
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Version check
Known conditions: not stated in public data.
Suse4 products
- python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSS< 3.12.13-150600.3.65.1
- python312-core&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP6< 3.12.13-150600.3.65.1
- python312&distro=SUSE Linux Enterprise Server 15 SP6-LTSS< 3.12.13-150600.3.65.1
- python312&distro=SUSE Linux Enterprise Server for SAP Applications 15 SP6< 3.12.13-150600.3.65.1
1 vendor · 4 products
References
2 linksRelated vulnerabilities
Insufficient evidenceSUSE-SU-2026:4659-1SUSE Linux Enterprisesuse · python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSS +3 moresuse python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSSSecurity update for python312
This update for python312 fixes the following issues:
- CVE-2026-19445: reassigned SNI callbacks with unreferenced SSLContext instances can cause use-after-free
(bsc#1283969).
- CVE-2026-19553: omitted server_hostname arguments in wrap_bio() can cause silent hostname verification bypasses
(bsc#1283826).
- CVE-2026-82049: tarfile extraction filters mishandle archives containing a hard link to a symbolic link, allowing file
modification and content disclosure (bsc#1280459).
Changes for python312:
- Update to 3.12.15CVSSUnscoredInsufficient evidenceSUSE-SU-2026:4534-1SUSE Linux Enterprisesuse · python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSS +3 moresuse python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSSSecurity update for python312
This update for python312 fixes the following issues:
- CVE-2025-13462: incorrect parsing of TarInfo header when GNU long name and type AREGTYPE are combined (bsc#1259611).
- CVE-2026-0864: improper handling of line-ending characters can lead to configuration file injection when the
`configparser` module is used (bsc#1269066).
- CVE-2026-1502: HTTP client proxy tunnel headers not validated for CR/LF (bsc#1261969).
- CVE-2026-2297: cpython: incorrectly handled hook in FileLoader can lead to validation bypass (bsc#1259240).
- CVE-2026-3276: quadratic complexity in `unicodedata.normalize()` can lead to DoS when processing specially crafted
Unicode input (bsc#1267581).
- CVE-2026-4224: C stack overflow when parsing XML with deeply nested DTD content models (bsc#1259735).
- CVE-2026-4360: in the Tarfile.extract() function, the filter parameter is not passed properly when extracting
hardlinks (bsc#1269959).
- CVE-2026-4519: leading dashes in URLs are accepted by the `webbrowser.open()` API and allow for web browser command
line option injection (bsc#1260026).
- CVE-2026-6100: Arbitrary code execution or information disclosure via use-after-free in decompression modules
(bsc#1262098).
- CVE-2026-7210: `xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding
protection (bsc#1264962).
- CVE-2026-7774: `tarfile.data_filter` path traversal bypass allows writing outside the extraction directory
(bsc#1267821).
- CVE-2026-8328: `ftpcp()` does not use actual peer address and trusts server-supplied PASV host address (bsc#1265268).
- CVE-2026-9669: crafted input can cause a stack buffer overflow (bsc#1267974).
- CVE-2026-11940: tarfile extraction filter bypass via a crafted archive allows escaping the destination directory and
enables arbitrary file reads and writes (bsc#1268977).
- CVE-2026-11972: infinite loop due to improper EOF handling in the tarfile module streaming mode can lead to DoS
(bsc#1269788).
- CVE-2026-15308: Incremental HTMLParser allows CPU-exhaustion DoS via repeated unterminated markup declarations
(bsc#1271192).
- CVE-2026-15310: memory exhaustion in zipfile in bzip2/LZMA/Zstandard decompression (bsc#1277111).
- CVE-2026-15806: urllib.request.HTTPPasswordMgr credentials for one URL scheme sent over another scheme (bsc#1276223).
- CVE-2026-17084: StringPrep algorithm considered Unicode codepoint attributes outside Unicode 3.2.0 (bsc#1276226).
- CVE-2026-19672: The tarfile module's tar and data extraction filters created directories outside the destination for
members whose name leaves the destination and retu (bsc#1276227).
Changes for python312:
- Update to 3.12.14:
- Core and Builtins
- gh-139808: Add branch protections for AArch64 (BTI/PAC) in
assembly code used by -X perf_jit (Linux perf profiler
integration).
- Documentation
- gh-136155: We are now checking for fatal errors in EPUB
builds in CI.
- Library
- gh-109638: Fix exponential time in csv.Sniffer.sniff() for
a sample which contains many quote characters. A doubled
quote character is now also detected in a field which
contains the delimiter or a line break.
- gh-98820: Fix quadratic time in csv.Sniffer.sniff() for
a sample which contains quoted fields, in particular for
a single column of quoted fields.
- gh-149231: In tomllib, the number of parts in TOML keys is
now limited.
- gh-146083: Update bundled libexpat to version 2.7.5.
- gh-141707: Don't change tarfile.TarInfo type from AREGTYPE
to DIRTYPE when parsing GNU long name or link headers
(bsc#1259611, CVE-2025-13462).
- gh-90949: Add
SetBillionLaughsAttackProtectionActivationThreshold() and
SetBillionLaughsAttackProtectionMaximumAmplification() to
xmlparser objects to tune protections against billion
laughs attacks. Patch by B�n�dikt Tran.
- Security
- gh-155558: Update bundled libexpat to version 2.8.3 for the
fix to CVE 2026-72522.
- gh-153030: Fixed quadratic complexity in incremental
parsing of long unterminated constructs (such as tags or
comments) in html.parser.HTMLParser, which could be
exploited for a denial of service (bsc#1271192,
CVE-2026-15308).
- gh-152674: The xml.etree.ElementTree.Element methods
findall(), iterfind() and find() avoid quadratic behavior
when using XPath index predicates ([1], [last()],
[last()-N]) on XML documents with many same-tag siblings.
- gh-152216: Update bundled libexpat to version 2.8.2.
- gh-151987: The tarfile.TarFile.extract() method now applies
the given filter when it extracts a link target from the
archive as a fallback (bsc#1269959, CVE-2026-4360).
- gh-151981: In tarfile, seeking a stream now stops when end
of the stream is reached (bsc#1269788, CVE-2026-11972).
- gh-151544: Modules/Setup.local is no longer used as
a landmark to discover whether Python is running in
a source tree, as it could potentially affect actual
installs. The pybuilddir.txt file is now the sole indicator
of running in a source tree.
- gh-151558: Fixed an vulnerability in the tarfile data and
tar extraction filters where crafted archives could create
a symlink pointing outside the destination directory. This
was a bypass of CVE 2025-4330 (bsc#1268977,
CVE-2026-11940).
- gh-150599: Fix a possible stack buffer overflow in bz2 when
a bz2.BZ2Decompressor is reused after a decompression
error. The decompressor now becomes unusable after libbz2
reports an error (bsc#1267974, CVE-2026-9669).
- gh-150743: http.client now limits the number of
chunked-response trailer lines it will read to 100, and the
number of interim (1xx) responses it will skip to 100.
A malicious or broken server could previously stream
trailer lines or 100 Continue responses forever, hanging
the client even when a socket timeout was in use. Reported
by @YLChen-007 via GHSA-w4q2-g22w-6fr4.
- gh-149698: Update bundled libexpat to version 2.8.1 for the
fix for CVE 2026-45186.
- gh-87451: The ftplib module's undocumented ftpcp function
no longer trusts the IPv4 address value returned from the
source server in response to the PASV command by default,
completing the fix for CVE-2021-4189. As with ftplib.FTP,
the former behavior can be re-enabled by setting the
trust_server_pasv_ipv4_address attribute on the source
ftplib.FTP instance to True. Thanks to Qi Deng at Aurascape
AI for the report (bsc#1265268, CVE-2026-8328).
- gh-149486: tarfile.data_filter() now validates link targets
using the same normalised value that is written to disk,
strips trailing separators from the member name when
resolving a symlink's directory, and rejects link members
that would replace the destination directory itself. This
closes several path-traversal bypasses of the data
extraction filter (bsc#1267821, CVE-2026-7774).
- gh-149079: Fix a potential denial of service in
unicodedata.normalize(). The canonical ordering step of
Unicode normalization used a quadratic-time insertion sort
for reordering combining characters, which could be
exploited with crafted input containing many combining
characters in non-canonical order. Replaced with
a linear-time counting sort for long runs (bsc#1267581,
CVE-2026-3276).
- gh-149018: Improved protection against XML hash-flooding
attacks in xml.parsers.expat and xml.etree.ElementTree when
Python is compiled with libExpat 2.8.0 or later
(bsc#1264962, CVE-2026-7210).
- gh-149017: Update bundled libexpat to version 2.8.0.
- gh-148808: Added buffer boundary check when using nbytes
parameter with
asyncio.AbstractEventLoop.sock_recvfrom_into(). Only
relevant for Windows and the asyncio.ProactorEventLoop.
- gh-148395: Fix a dangling input pointer in
lzma.LZMADecompressor, bz2.BZ2Decompressor, and internal
zlib._ZlibDecompressor when memory allocation fails with
MemoryError, which could let a subsequent decompress() call
read or write through a stale pointer to the
already-released caller buffer (bsc#1262098, CVE-2026-6100,
seems like it has been incompletely applied
gh#python/cpython#151605).
- gh-148169: A bypass in webbrowser allowed URLs prefixed
with %action to pass the dash-prefix safety check
(bsc#1262098, CVE-2026-6100).
- gh-146581: Fix vulnerability in shutil.unpack_archive() for
ZIP files on Windows which allowed to write files outside
of the destination tree if the patch in the archive
contains a Windows drive prefix. Now such invalid paths
will be skipped. Files containing '..' in the name (like
'foo..bar') are no longer skipped.
- gh-146333: Fix quadratic backtracking in
configparser.RawConfigParser option parsing regexes (OPTCRE
and OPTCRE_NV). A crafted configuration line with many
whitespace characters could cause excessive CPU usage.
- gh-146211: Reject CR/LF characters in tunnel request
headers for the HTTPConnection.set_tunnel() method
(bsc#1261969, CVE-2026-1502).
- gh-145986: xml.parsers.expat: Fixed a crash caused by
unbounded C recursion when converting deeply nested XML
content models with ElementDeclHandler(). This addresses
CVE 2026-4224 (bsc#1259735, CVE-2026-4224).
- gh-145599: Reject control characters in http.cookies.Morsel
update() and js_output(). This addresses CVE 2026-3644.
- gh-145506: Fixes CVE 2026-2297 by ensuring that
SourcelessFileLoader uses io.open_code() when opening .pyc
files (bsc#1259240, CVE-2026-2297).
- gh-144370: Disallow usage of control characters in status
in wsgiref.handlers to prevent HTTP header injections.
Patch by Benedikt Johannes.
- gh-143930: Reject leading dashes in URLs passed to
webbrowser.open() (bsc#1260026, CVE-2026-4519).
- gh-143927: Normalize all line endings (CR, CRLF, and LF) to
LF+TAB when writing multi-line configparser values
(bsc#1269066, CVE-2026-0864).
- Tests
- gh-149776: Fix test_socket on Linux kernel 7.1 and newer:
skip UDP Lite tests if it's not supported. Patch by Victor
Stinner.CVSSUnscoredInsufficient evidenceSUSE-SU-2026:3569-1SUSE Linux Enterprisesuse · python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSS +3 moresuse python312-core&distro=SUSE Linux Enterprise Server 15 SP6-LTSSSecurity update for python312
This update for python312 fixes the following issues:
Security issues fixed:
- CVE-2026-0864: improper handling of line-ending characters can lead to configuration file injection when the
`configparser` module is used (bsc#1269066).
- CVE-2026-3276: quadratic complexity in `unicodedata.normalize()` can lead to DoS when processing specially crafted
Unicode input (bsc#1267581).
- CVE-2026-4360: in the Tarfile.extract() function, the filter parameter is not passed properly when extracting
hardlinks (bsc#1269959).
- CVE-2026-7210: `xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding
protection (bsc#1264962).
- CVE-2026-7774: `tarfile.data_filter` path traversal bypass allows writing outside the extraction directory
(bsc#1267821).
- CVE-2026-8328: `ftpcp()` does not use actual peer address and trusts server-supplied PASV host address (bsc#1265268).
- CVE-2026-11940: tarfile extraction filter bypass via a crafted archive allows escaping the destination directory and
enables arbitrary file reads and writes (bsc#1268977).
- CVE-2026-11972: infinite loop due to improper EOF handling in the tarfile module streaming mode can lead to DoS
(bsc#1269788).
- CVE-2026-15308: Incremental HTMLParser allows CPU-exhaustion DoS via repeated unterminated markup declarations
(bsc#1271192).
Non security issues fixed:
- [kernel 7.1] udplite was removed -> python fails in tests (bsc#1268375).
- crypto-policies: Extend the crypto-policies support for mozilla-nss, openjdk, krb5, bind, stunnel, openssh, libssh and
more packages (bsc#1211301).CVSSUnscoredInsufficient evidenceSUSE-SU-2026:1292-1opensuse · python312-core&distro=openSUSE Leap 15.6 +6 moreopensuse python312-core&distro=openSUSE Leap 15.6Security update for python312
This update for python312 fixes the following issues:
- CVE-2025-13462: incorrect parsing of TarInfo when GNU long name and type AREGTYPE are combined can lead to
misinterpretation of tar archives (bsc#1259611).
- CVE-2026-3479: improper resource argument validation in `pkgutil.get_data()` can lead to path traversal (bsc#1259989).
- CVE-2026-3644: incomplete control character validation in http.cookies can lead to input validation bypass
(bsc#1259734).
- CVE-2026-4224: parsing XML with deeply nested DTD content models can lead to C stack overflow (bsc#1259735).
- CVE-2026-4519: failure to sanitize leading dashes in URLs in the `webbrowser.open()` API can lead to web browser
command line option injection (bsc#1260026).CVSSUnscoredInsufficient evidenceSUSE-SU-2026:0644-1opensuse · python312-core&distro=openSUSE Leap 15.6 +6 moreopensuse python312-core&distro=openSUSE Leap 15.6Security update for python312
This update for python312 fixes the following issues:
- CVE-2025-11468: header injection when folding a long comment in an email header containing exclusively unfoldable
characters (bsc#1257029).
- CVE-2026-0672: HTTP header injection via user-controlled cookie values and parameters when using http.cookies.Morsel
(bsc#1257031).
- CVE-2026-0865: user-controlled header containing newlines can allow injecting HTTP headers (bsc#1257042).
- CVE-2025-15366: user-controlled command can allow additional commands injected using newlines (bsc#1257044).
- CVE-2025-15282: user-controlled data URLs parsed may allow injecting headers (bsc#1257046).
- CVE-2025-15367: control characters may allow the injection of additional commands (bsc#1257041).CVSSUnscored