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[3.13] gh-145986: Avoid unbound C recursion in conv_content_model in pyexpat.c (CVE 2026-4224) (GH-145987) #145996

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Merged
kumaraditya303 merged 3 commits into from
Mar 16, 2026
+28 −1
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[3.13] gh-145986: Avoid unbound C recursion in conv_content_model in pyexpat.c (CVE 2026-4224) (GH-145987) #145996

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1822fc7
gh-145986: Avoid unbound C recursion in `conv_content_model` in `pyex…
StanFromIreland Mar 15, 2026
04a88d8
Remvoe `skip_if_unlimited_stack_size` decorator
StanFromIreland Mar 15, 2026
54309bf
Remove more decorators not on this branch
StanFromIreland Mar 15, 2026
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Remove more decorators not on this branch
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@StanFromIreland
StanFromIreland authored Mar 15, 2026
commit 54309bf9b7e586276c661462712be7f4b6accf50
2 changes: 0 additions & 2 deletions Lib/test/test_pyexpat.py
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Expand Up @@ -688,8 +688,6 @@ def test_trigger_leak(self):
parser.ElementDeclHandler = lambda _1, _2: None
self.assertRaises(TypeError, parser.Parse, data, True)

@support.skip_emscripten_stack_overflow()
@support.skip_wasi_stack_overflow()
def test_deeply_nested_content_model(self):
# This should raise a RecursionError and not crash.
# See https://github.com/python/cpython/issues/145986.
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