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 50efb718b3 from main.
Follow-up to CVE-2025-57833.
Thanks Stackered for the report, and Simon Charette and Mariusz Felisiak
for the reviews.
Backport of 5b90ca1e75 from main.
The fix landed in a8cf8c292c 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 18b13cf6c4 from main.
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 a8cf8c292c from main.
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 e48527f91d from main.
Thanks Seokchan Yoon for the report, Markus Holtermann for the
triage, and Jake Howard for the review.
Follow-up to CVE-2025-27556 and 39e2297210.
Backport of c880530ddd from main.
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
52188a5ca6 without skipping it.
Backport of 548209e620 from main.
Further details about Python changes can be found in:
0243f97cba.
Refs #36499. Thank you Clifford Gama for the thorough review!
Backport of e4515dad7a from main.
