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forkserver mode.
This variable should only be set once. Under forkserver, this module
was getting executed multiple times, causing nested temporary dirs
that didn't clean up properly, raising FileNotFoundError.
This similar to #27890 although a slightly different cause.
Backport of cd6278c4c09e4af9b2988d585b372d9abeeb63ee from main.
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change for incomplete entities.
Backport of 7b80b2186300620931009fd62c2969f108fe7a62 from main.
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Backport of d0d596042e958809a13b681d7a184ac7b95e0aa3 from main.
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Backport of 8d4ec9949aedc11a258d718689550eea61ae8d4c from main.
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in XML serializer.
Previously, `getInnerText()` recursively used `list.extend()` on strings,
which added each character from child nodes as a separate list element.
On deeply nested XML content, this caused the overall deserialization
work to grow quadratically with input size, potentially allowing
disproportionate CPU consumption for crafted XML.
The fix separates collection of inner texts from joining them, so that
each subtree is joined only once, reducing the complexity to linear in
the size of the input. These changes also include a mitigation for a
xml.dom.minidom performance issue.
Thanks Seokchan Yoon (https://ch4n3.kr/) for report.
Co-authored-by: Jacob Walls <jacobtylerwalls@gmail.com>
Co-authored-by: Natalia <124304+nessita@users.noreply.github.com>
Backport of 50efb718b31333051bc2dcb06911b8fa1358c98c from main.
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injection in column aliases on PostgreSQL.
Follow-up to CVE-2025-57833.
Thanks Stackered for the report, and Simon Charette and Mariusz Felisiak
for the reviews.
Backport of 5b90ca1e7591fa36fccf2d6dad67cf1477e6293e from main.
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registration.
Ideally, this will be reverted when an upstream solution is available for
https://github.com/python/cpython/issues/141560.
Thanks Patrick Rauscher for the report and Augusto Pontes for the
first iteration and test.
Backport of 34186e731ca20a2344b1f88fd543a854d6b13a00 from main.
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Backport of ce36c35e76f82f76cdfa5777456e794d481e5afc from main.
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OverwritingStorageTests.test_save_overwrite_behavior_temp_file().
Backport of a08f1693f37e9aae9eca395020cce0638cb5aa5f from main.
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test_simple_block_tag_parens().
Backport of e94b19f6abdda70689aa17e399ce5fdef7897674 from main.
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Co-authored-by: Rida Zouga <ridazouga@gmail.com>
Backport of 3ea0195ca57790d7bd6921ecaa32312eabec78d0 from main
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Backport of 7b32485ee98edf7e8b94ad9c8acdccee562bf216 from main.
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docs/howto/upgrade-version.txt.
Backport of bd7940982d6cab386dae7698ab097b91e5d8145e from main.
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This also fixed a small bash issue in `confirm_release.sh` script.
Backport of 532c1058a7dd2616181259c94eb92f2477038d2c from main.
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The fix landed in a8cf8c292cfee98fe6cc873ca5221935f1d02271 will be
backported to 5.1 and 4.2 since the 2048 limit was rolled out as part of
the security release for CVE-2025-64458.
Backport of 18b13cf6c48ff0a20b2a74d3b90d1fc1602608e4 from main.
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HttpResponseRedirectBase.
Refs CVE-2025-64458.
The previous limit of 2048 characters reused the URLValidator constant
and proved too restrictive for legitimate redirects to some third-party
services. This change introduces a separate `MAX_URL_REDIRECT_LENGTH`
constant (defaulting to 16384) and uses it in HttpResponseRedirectBase.
Thanks Jacob Walls for report and review.
Backport of a8cf8c292cfee98fe6cc873ca5221935f1d02271 from main.
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database casts.
Added warning in DateField documentation about type differences when using
timedelta on PostgreSQL and MySQL. Mentioned Cast() and integer arithmetic
solutions.
Backport of 55af4749b9a48b2978e893e7d7be313c0b2abdb1 from main.
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GitHub Actions defaults to a 360-minute (6-hour) timeout. We've had jobs
hang due to issues in the parallel test runner, causing them to run for
the full 6 hours. This wastes resources and negatively impacts CI
availability, so explicit timeouts have been added to prevent
long-running hangs.
Backport of e48527f91d341c85a652499a5baaf725d36ae54f from main.
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Backport of d62e811acfc6a056e847bfcc460092a98511ed00 from main.
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annotated queryset.
Regression in b8e5a8a9a2a767f584cbe89a878a42363706f939.
Refs #36404.
The replace_expressions method was innapropriately dealing with falsey
but not None source expressions causing them to also be potentially
evaluated when __bool__ was invoked (e.g. QuerySet.__bool__ evaluates
the queryset).
The changes introduced in b8e5a8a9a2, which were to deal with a similar
issue, surfaced the problem as aggregation over an annotated queryset
requires an inlining (or pushdown) of aggregate references which is
achieved through replace_expressions.
In cases where an empty Q object was provided as an aggregate filter,
such as when the admin facetting feature was used as reported, it would
wrongly be turned into None, instead of an empty WhereNode, causing a
crash at aggregate filter compilation.
Note that the crash signature differed depending on whether or not the
backend natively supports aggregate filtering
(supports_aggregate_filter_clause) as the fallback, which makes use
Case / When expressions, would result in a TypeError instead of a
NoneType AttributeError.
Thanks Rafael Urben for the report, Antoliny and Youngkwang Yang for
the triage.
Backport of 2a6e0bd72d4a69725b957d6748a4b834f21b12b5 from main
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Backport of 846613e521104fa2f2e1c2023e4a1a9886a2ff48 from main.
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Backport of 86b8058b40145fb5ba4fd859676225f533eca986 from main.
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Backport of 08f4901b3fd3f352ef9cea830d000aee73152556 from main.
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Backport of e8958c4690faef27b6715524ecb5c49c3ecb6a09 from main.
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At the direction of the Security Team. Thanks Markus Holtermann,
Jake Howard, and Natalia Bidart for reviews.
Backport of 09d4bf5cd9c95c588d3ec22edea5db1f5f146900 from main.
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Backport of a523d5c8336f5f7f5e24a1cc8034ce65aedec3c6 from main.
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Backport of 971c76f735d2d61051d887b62a244d743794699a from main.
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Backport of 8ce3e1f9d0cdfdcba91e7e544804fa33f6fa9177 from main.
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Backport of 5834643f43a767fe19f2c6d10217b204e7584ec8 from main.
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Thanks Mustafa Barakat for the report, Baptiste Mispelon for
the triage, and Jake Howard for the review.
Backport of e05f2a75695b5f5faa7682d4053db4776d4d6f93 from main.
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Backport of 7e765a68598b2b798e49bf1f4b431a7bcac085a4 from main.
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Thank you Davide Netti for the report and initial patch.
Co-authored-by: Davide Netti <davide.netti4@gmail.com>
Backport of 01c70ba14899409e86dc3f6c6bcae0afc48094e7 from main.
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Backport of c5a107e8248813f07325ae65232b5e53e9ac4238 from main.
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Backport of 6e18c078d5c044a1d22dd6a64ace11d9e5f6d0bc from main.
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dictionary expansion.
Backport of 3c3f46357718166069948625354b8315a8505262 from main.
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the _connector kwarg.
Thanks cyberstan for the report, Sarah Boyce, Adam Johnson, Simon
Charette, and Jake Howard for the reviews.
Backport of c880530ddd4fabd5939bab0e148bebe36699432a from main.
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HttpResponseRedirect/HttpResponsePermanentRedirect on Windows.
Thanks Seokchan Yoon for the report, Markus Holtermann for the
triage, and Jake Howard for the review.
Follow-up to CVE-2025-27556 and 39e2297210d9d2938c75fc911d45f0e863dc4821.
Backport of c880530ddd4fabd5939bab0e148bebe36699432a from main.
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composite pk.
Proxy models subclassing a model with a CompositePrimaryKey were
incorrectly reporting check errors because the check that requires only
local fields to be used in a composite pk was evaluated against the proxy
subclass, which has no fields.
To fix this, composite pk field checks are not evaluated against
proxy subclasses, as none of the checks are applicable to proxy
subclasses. This also has the benefit of not double-reporting real check
errors from an invalid superclass pk.
Thanks Clifford Gama for the review.
Backport of 74564946c3b42a2ef7d087047e49873847a7e1d9 from main.
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deferred annotations.
In Python 3.14, annotations are deferred by default, so we should not
assume that the names in them have been imported unconditionally.
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Backport of ab108bf94dfc06c311d7dc81866b848fe5b5ee6c from main.
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docs/topics/i18n/translation.txt.
Backport of 0ea01101c3a35568bc43e9707ac058b9874bd425 from main.
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docs/topics/i18n/formatting.txt.
Co-authored-by: Ahmed Nassar <a.moh.nassar00@gmail.com>
Backport of 74239181252ca73bebb84789856f5d8937d421b4 from main.
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with tblib 3.2+.
tblib 3.2+ makes exception subclasses with __init__() and the default
__reduce__() picklable. This broke the test for
RemoteTestResult._confirm_picklable(), which expects a specific
exception to fail unpickling.
https://github.com/ionelmc/python-tblib/blob/master/CHANGELOG.rst#320-2025-10-21
This fix defines ExceptionThatFailsUnpickling.__reduce__() in a way
that pickle.dumps(obj) succeeds, but pickle.loads(pickle.dumps(obj))
raises TypeError.
Refs #27301. This preserves the intent of the regression test from
52188a5ca6bafea0a66f17baacb315d61c7b99cd without skipping it.
Backport of 548209e620b3ca34396a360453f07c8dbb8aa6c7 from main.
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Oracle and GEOS 3.12+.
Backport of 344ae16e1e21ab7c0b594d755519738f7f16eaf1 from main
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Backport of 56977b466c33ca3da14a1ed2609172425a76a34e from main.
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slices.
Backport of f715bc8990b5b8a1df948c2b71e8edbdda47e7db from main.
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