CVE-2026-9669
Published:June 08, 2026
Updated:June 26, 2026
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.
Affected Packages
python (CONDA):
Affected version(s) >=3.14.0 <3.14.6Fix Suggestion:
Update to version 3.14.6python (CONDA):
Affected version(s) >=3.13.0 <3.13.14Fix Suggestion:
Update to version 3.13.14https://github.com/python/cpython.git (GITHUB):
Affected version(s) >=v3.14.0 <v3.14.6Fix Suggestion:
Update to version v3.14.6https://github.com/python/cpython.git (GITHUB):
Affected version(s) >=v3.13.0 <v3.13.14Fix Suggestion:
Update to version v3.13.14Related Resources (8)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Stack-based Buffer Overflow
EPSS
Base Score:
0.38