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This CVE record has been marked for NVD enrichment efforts.
Description
bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer. This could crash the process when processing untrusted data.
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Title: CPython, Description: Los objetos bz2.BZ2Decompressor podrían reutilizarse después de un error de descompresión. Si una aplicación capturaba el OSError resultante y reintentaba con el mismo descompresor, una entrada manipulada podría hacer que el descompresor reanudara desde un estado interno no válido y realizara escrituras fuera de límites en un búfer de pila. Esto podría bloquear el proceso al procesar datos no confiables.
CVE Modified by Python Software Foundation7/07/2026 2:16:40 PM
New CVE Received from Python Software Foundation6/08/2026 7:17:25 PM
Action
Type
Old Value
New Value
Added
Description
bz2.BZ2Decompressor objects could be reused after a decompression error. If an application caught the resulting OSError and retried with the same decompressor, crafted input could cause the decompressor to resume from an invalid internal state and perform out-of-bounds writes to a stack buffer. This could crash the process when processing untrusted data.
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