When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs.
High CVSS 7.5
Summary
When an Expat parser with a registered ElementDeclHandler parses an inline document type definition containing a deeply nested content model a C stack overflow occurs.
In-depth triage
No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).
Affected products
- :
Sources
- NVD DATABASE
Original Links
- https://github.com/python/cpython/commit/196edfb06a7458377d4d0f4b3cd41724c1f3bd4a Patch
- https://github.com/python/cpython/commit/24ce88b285f56ee11626cf5e472af3cd8cc7c621
- https://github.com/python/cpython/commit/642865ddf4b232da1f3b1f7abcfa3254c4bfe785 Patch
- https://github.com/python/cpython/commit/af856a7177326ac25d9f66cc6dd28b554d914fee Patch
- https://github.com/python/cpython/commit/e0a8a6da90597a924b300debe045cdb4628ee1f3 Patch
- https://github.com/python/cpython/commit/eb0e8be3a7e11b87d198a2c3af1ed0eccf532768 Patch
- https://github.com/python/cpython/issues/145986 Issue Tracking
- https://github.com/python/cpython/pull/145987 Patch
- https://mail.python.org/archives/list/security-announce@python.org/thread/5M7CGUW3XBRY7II4DK43KF7NQQ3TPZ6R/ Third Party Advisory
- http://www.openwall.com/lists/oss-security/2026/03/16/4 Mailing List
Timeline
- nvd_ingest NVD