- Tools/Demos
- gh-139330: SBOM generation tool didn’t cross-check the version
and checksum values against the Modules/expat/refresh.sh script,
leading to the values becoming out-of-date during routine
updates.
- Security
- gh-139700: Check consistency of the zip64 end of central
directory record. Support records with “zip64 extensible data”
if there are no bytes prepended to the ZIP file.
- gh-139400: xml.parsers.expat: Make sure that parent Expat
parsers are only garbage-collected once they are no longer
referenced by subparsers created by
ExternalEntityParserCreate(). Patch by Sebastian Pipping.
- gh-135661: Fix parsing start and end tags in
html.parser.HTMLParser according to the HTML5 standard.
* Whitespaces no longer accepted between </ and the tag name.
E.g. </ script> does not end the script section.
* Vertical tabulation (\v) and non-ASCII whitespaces no longer
recognized as whitespaces. The only whitespaces are \t\n\r\f
and space.
* Null character (U+0000) no longer ends the tag name.
* Attributes and slashes after the tag name in end tags are now
ignored, instead of terminating after the first > in quoted
attribute value. E.g. </script/foo=">"/>.
* Multiple slashes and whitespaces between the last attribute
and closing > are now ignored in both start and end tags. E.g.
<a foo=bar/ //>.
* Multiple = between attribute name and value are no longer
collapsed. E.g. <a foo==bar> produces attribute “foo” with
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=162
- Security
- gh-135034: Fixes multiple issues that allowed tarfile
extraction filters (filter="data" and filter="tar") to be
bypassed using crafted symlinks and hard links.
Addresses CVE-2024-12718 (bsc#1244056), CVE-2025-4138
(bsc#1244059), CVE-2025-4330 (bsc#1244060), and
CVE-2025-4517 (bsc#1244032).
- gh-133767: Fix use-after-free in the “unicode-escape”
decoder with a non-“strict” error handler (CVE-2025-4516,
bsc#1243273).
- gh-128840: Short-circuit the processing of long IPv6
addresses early in ipaddress to prevent excessive memory
consumption and a minor denial-of-service.
- Library
- gh-128840: Fix parsing long IPv6 addresses with embedded
IPv4 address.
- gh-134062: ipaddress: fix collisions in __hash__() for
IPv4Network and IPv6Network objects.
- gh-123409: Fix ipaddress.IPv6Address.reverse_pointer output
according to RFC 3596, §2.5. Patch by Bénédikt Tran.
- bpo-43633: Improve the textual representation of
IPv4-mapped IPv6 addresses (RFC 4291 Sections 2.2, 2.5.5.2)
in ipaddress. Patch by Oleksandr Pavliuk.
- Remove upstreamed patches:
- CVE-2025-4516-DecodeError-handler.patch
- restrict PEP668 to ALP/Tumbleweed
* Support Expat >= 2.4.5
- allow build with Sphinx >= 3.x
* remove importlib_resources and importlib-metadata
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=147
- gh-131852: msgfmt no longer adds the POT-Creation-Date to
generated .mo files for consistency with GNU msgfmt.
- gh-85012: Correctly reset msgctxt when compiling messages in
msgfmt.
- gh-131050: test_ssl.test_dh_params is skipped if the
underlying TLS library does not support finite-field
ephemeral Diffie-Hellman.
- gh-119727: Add --single-process command line option to Python
test runner (regrtest). Patch by Victor Stinner.
- gh-131809: Update bundled libexpat to 2.7.1
- gh-131261: Upgrade to libexpat 2.7.0
- gh-127371: Avoid unbounded buffering for
tempfile.SpooledTemporaryFile.writelines(). Previously, disk
spillover was only checked after the lines iterator had been
exhausted. This is now done after each line is written.
- gh-121284: Fix bug in the folding of rfc2047 encoded-words
when flattening an email message using a modern email
policy. Previously when an encoded-word was too long for
a line, it would be decoded, split across lines, and
re-encoded. But commas and other special characters in the
original text could be left unencoded and unquoted. This
could theoretically be used to spoof header lines using a
carefully constructed encoded-word if the resulting rendered
email was transmitted or re-parsed.
- gh-116608: undeprecate functional API for importlib.resources
- gh-132075: Fix possible use of socket address structures
with uninitialized members. Now all structure members are
initialized with zeroes by default.
- gh-132002: Fix crash when deallocating contextvars.ContextVar
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=108
- Tests
- gh-127906: Test the limited C API in test_cppext. Patch by
Victor Stinner.
- gh-127906: Backport test_cext from the main branch. Patch
by Victor Stinner.
- gh-127637: Add tests for the dis command-line
interface. Patch by Bénédikt Tran.
- Security
- gh-105704: When using urllib.parse.urlsplit() and
urllib.parse.urlparse() host parsing would not reject
domain names containing square brackets ([ and ]). Square
brackets are only valid for IPv6 and IPvFuture hosts
according to RFC 3986 Section 3.2.2. (CVE-2025-0938,
bsc#1236705)
- gh-127655: Fixed the
asyncio.selector_events._SelectorSocketTransport
transport not pausing writes for the protocol when
the buffer reaches the high water mark when using
asyncio.WriteTransport.writelines() (CVE-2024-12254,
bsc#1234290).
- gh-126108: Fix a possible NULL pointer dereference in
PySys_AddWarnOptionUnicode().
- gh-80222: Fix bug in the folding of quoted strings
when flattening an email message using a modern email
policy. Previously when a quoted string was folded so
that it spanned more than one line, the surrounding
quotes and internal escapes would be omitted. This could
theoretically be used to spoof header lines using a
carefully constructed quoted string if the resulting
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=94
- Tools/Demos
- gh-126807: Fix extraction warnings in pygettext.py caused
by mistaking function definitions for function calls.
- Tests
- gh-126909: Fix test_os extended attribute tests to work on
filesystems with 1 KiB xattr size limit.
- gh-125041: Re-enable skipped tests for zlib on the
s390x architecture: only skip checks of the compressed
bytes, which can be different between zlib’s software
implementation and the hardware-accelerated implementation.
- gh-124295: Add translation tests to the argparse module.
- Security
- gh-126623: Upgrade libexpat to 2.6.4
- Library
- gh-127303: Publicly expose EXACT_TOKEN_TYPES in
token.__all__.
- gh-123967: Fix faulthandler for trampoline frames. If the
top-most frame is a trampoline frame, skip it. Patch by
Victor Stinner.
- gh-127182: Fix io.StringIO.__setstate__() crash, when None
was passed as the first value.
- gh-127217: Fix urllib.request.pathname2url() for paths
starting with multiple slashes on Posix.
- gh-127035: Fix shutil.which on Windows. Now it looks at
direct match if and only if the command ends with a PATHEXT
extension or X_OK is not in mode. Support extensionless
files if “.” is in PATHEXT. Support PATHEXT extensions that
end with a dot.
- gh-127078: Fix issue where urllib.request.url2pathname()
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=85
- Tests
- gh-124378: Updated test_ttk to pass with Tcl/Tk 8.6.15.
- Security
- gh-122792: Changed IPv4-mapped ipaddress.IPv6Address to
consistently use the mapped IPv4 address value for deciding
properties. Properties which have their behavior fixed are
is_multicast, is_reserved, is_link_local, is_global, and
is_unspecified.
- Library
- gh-116850: Fix argparse for namespaces with not directly
writable dict (e.g. classes).
- gh-58573: Fix conflicts between abbreviated long options in
the parent parser and subparsers in argparse.
- gh-61181: Fix support of choices with string value in
argparse. Substrings of the specified string no longer
considered valid values.
- gh-80259: Fix argparse support of positional arguments with
nargs='?', default=argparse.SUPPRESS and specified type.
- gh-124498: Fix typing.TypeAliasType not to be generic, when
type_params is an empty tuple.
- gh-124345: argparse vim supports abbreviated single-dash
long options separated by = from its value.
- gh-104860: Fix disallowing abbreviation of single-dash long
options in argparse with allow_abbrev=False.
- gh-63143: Fix parsing mutually exclusive arguments in
argparse. Arguments with the value identical to the default
value (e.g. booleans, small integers, empty or 1-character
strings) are no longer considered “not present”.
- gh-72795: Positional arguments with nargs equal to '*' or
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=71
- Tests
- gh-101525: Skip test_gdb if the binary is relocated by
BOLT. Patch by Donghee Na.
- Security
- gh-123678: Upgrade libexpat to 2.6.3
- gh-121285: Remove backtracking from tarfile header parsing
for hdrcharset, PAX, and GNU sparse headers (bsc#1230227,
CVE-2024-6232).
- Library
- gh-123270: Applied a more surgical fix for malformed
payloads in zipfile.Path causing infinite loops (gh-122905)
without breaking contents using legitimate characters
(bsc#1229704, CVE-2024-8088).
- gh-123213: xml.etree.ElementTree.Element.extend() and
Element assignment no longer hide the internal exception if
an erronous generator is passed. Patch by Bar Harel.
- gh-85110: Preserve relative path in URL without netloc in
urllib.parse.urlunsplit() and urllib.parse.urlunparse().
- gh-123067: Fix quadratic complexity in parsing "-quoted
cookie values with backslashes by http.cookies
(bsc#1229596, CVE-2024-7592)
- gh-122903: zipfile.Path.glob now correctly matches
directories instead of silently omitting them.
- gh-122905: zipfile.Path objects now sanitize names from the
zipfile.
- gh-122695: Fixed double-free when using gc.get_referents()
with a freed asyncio.Future iterator.
- gh-116263: logging.handlers.RotatingFileHandler no longer
rolls over empty log files.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=66
- Tests
- gh-59022: Add tests for pkgutil.extend_path(). Patch by
Andreas Stocker.
- gh-99242: os.getloadavg() may throw OSError when
running regression tests under certain conditions (e.g.
chroot). This error is now caught and ignored, since
reporting load average is optional.
- gh-121084: Fix test_typing random leaks. Clear typing ABC
caches when running tests for refleaks (-R option): call
_abc_caches_clear() on typing abstract classes and their
subclasses. Patch by Victor Stinner.
- gh-121160: Add a test for
readline.set_history_length(). Note that this test may fail
on readline libraries.
- gh-121200: Fix test_expanduser_pwd2() of
test_posixpath. Call getpwnam() to get pw_dir, since it
can be different than getpwall() pw_dir. Patch by Victor
Stinner.
- gh-121188: When creating the JUnit XML file, regrtest
now escapes characters which are invalid in XML, such
as the chr(27) control character used in ANSI escape
sequences. Patch by Victor Stinner.
- Security
- gh-121957: Fixed missing audit events around interactive
use of Python, now also properly firing for python -i, as
well as for python -m asyncio. The event in question is
cpython.run_stdin.
- gh-122133: Authenticate the socket connection for the
socket.socketpair() fallback on platforms where AF_UNIX is
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=60
- Security
- gh-118486: os.mkdir() on Windows now accepts mode of 0o700
to restrict the new directory to the current user. This
fixes CVE-2024-4030 affecting tempfile.mkdtemp() in
scenarios where the base temporary directory is more
permissive than the default.
- gh-116741: Update bundled libexpat to 2.6.2
- gh-117233: Detect BLAKE2, SHA3, Shake, & truncated SHA512
support in the OpenSSL-ish libcrypto library at build
time. This allows hashlib to be used with libraries that do
not to support every algorithm that upstream OpenSSL does.
- Core and Builtins
- gh-119821: Fix execution of annotation scopes within
classes when globals is set to a non-dict. Patch by Jelle
Zijlstra.
- gh-118263: Speed up os.path.normpath() with a direct C
call.
- gh-119311: Fix bug where names are unexpectedly mangled in
the bases of generic classes.
- gh-119395: Fix bug where names appearing after a generic
class are mangled as if they are in the generic class.
- gh-118507: Fix os.path.isfile() on Windows for pipes.
- gh-119213: Non-builtin modules built with argument clinic
were crashing if used in a subinterpreter before the main
interpreter. The objects that were causing the problem by
leaking between interpreters carelessly have been fixed.
- gh-119011: Fixes type.__type_params__ to return an empty
tuple instead of a descriptor.
- gh-118997: Fix _Py_ClearImmortal() assertion: use
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=47
- Security¶
- gh-115398: Allow controlling Expat >=2.6.0 reparse deferral
(CVE-2023-52425, bsc#1219559) by adding five new methods:
xml.etree.ElementTree.XMLParser.flush()
xml.etree.ElementTree.XMLPullParser.flush()
xml.parsers.expat.xmlparser.GetReparseDeferralEnabled()
xml.parsers.expat.xmlparser.SetReparseDeferralEnabled()
xml.sax.expatreader.ExpatParser.flush()
- gh-115399: Update bundled libexpat to 2.6.0 (bsc#1222075)
- gh-115243: Fix possible crashes in
collections.deque.index() when the deque is concurrently
modified.
- gh-114572: ssl.SSLContext.cert_store_stats() and
ssl.SSLContext.get_ca_certs() now correctly lock access to
the certificate store, when the ssl.SSLContext is shared
across multiple threads.
- Core and Builtins
- gh-109120: Added handle of incorrect star expressions, e.g
f(3, *). Patch by Grigoryev Semyon
- gh-99108: Updated the hashlib built-in HACL* project C code
from upstream that we use for many implementations when
they are not present via OpenSSL in a given build. This
also avoids the rare potential for a C symbol name one
definition rule linking issue.
- gh-116735: For INSTRUMENTED_CALL_FUNCTION_EX, set arg0 to
sys.monitoring.MISSING instead of None for CALL event.
- gh-113964: Starting new threads and process creation
through os.fork() are now only prevented once all
non-daemon threads exit.
OBS-URL: https://build.opensuse.org/package/show/devel:languages:python:Factory/python312?expand=0&rev=43
