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CVE-2026-9669

CVE.org · Published

Historical CVEsJSONAI instructions

Record status
Published
Identifier year (not publication year)
2026
Source publication
Source updated
Imported by cveboard
Source snapshot
cve_2026-10-24_midnight_baseline ·

Plain text

CNA source text (English)

bz2.BZ2Decompressor reuse after error can cause a stack buffer overflow

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.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

CPython

Vendor
Python Software Foundation
Product
CPython
Platforms
Unknown
Default status
unaffected
CPython · Scoped product and version facts
Version (version)Status (status)Version scheme (versionType)Exclusive end (lessThan)Inclusive end (lessThanOrEqual)Status changes (at → status)
0affectedpython3.10.21UnavailableNone listed
3.11.0affectedpython3.11.16UnavailableNone listed
3.12.0affectedpython3.12.14UnavailableNone listed
3.13.0affectedpython3.13.14UnavailableNone listed
3.14.0affectedpython3.14.6UnavailableNone listed
3.15.0a1affectedpython3.15.0b3UnavailableNone listed