CVE-2025-12084
When building nested elements using xml.dom.minidom methods such as appendChild() that have a dependency on _clear_id_cache() the algorithm is quadratic. Availability can be impacted when building excessively nested documents.
| Software | From | Fixed in |
|---|---|---|
| python / python | - | 3.13.11 |
| python / python | 3.14.0 | 3.14.2 |
| python / python | 3.15.0-alpha1 | 3.15.0-alpha1.x |
| python / python | 3.15.0-alpha2 | 3.15.0-alpha2.x |
- https://github.com/python/cpython/commit/027f21e417b26eed4505ac2db101a4352b7c51a0
- https://github.com/python/cpython/commit/08d8e18ad81cd45bc4a27d6da478b51ea49486e4
- https://github.com/python/cpython/commit/27648a1818749ef44c420afe6173af6868715437
- https://github.com/python/cpython/commit/8d2d7bb2e754f8649a68ce4116271a4932f76907
- https://github.com/python/cpython/commit/9c9dda6625a2a90d2a06c657eee021d6be19842d
- https://github.com/python/cpython/commit/a696ba8b4d42fd632afc9bc88ad830a2e4cceed8
- https://github.com/python/cpython/commit/ddcd2acd85d891a53e281c773b3093f9db953964
- https://github.com/python/cpython/issues/142145
- https://github.com/python/cpython/pull/142146
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