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VULNERABILITIES

CVE-2026-9669 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
http://www.openwall.com/lists/oss-security/2026/06/08/17 CVE
https://github.com/python/cpython/commit/157a5df8cb5d82b33f918a7489e72ce95ceb12b6 [email protected]
https://github.com/python/cpython/commit/1ba6135eae75ad8413413caeeedb56ae72320636 [email protected]
https://github.com/python/cpython/commit/5755d0f083949ff3c5bf3a37e673e24e306b036e [email protected]
https://github.com/python/cpython/commit/619a12b2e545391dc436b3af79dda22337382a6f [email protected]

see all 11 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-121Stack-based Buffer Overflow[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

11 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-9669
NVD Published Date:
Jun 8, 2026
NVD Last Modified:
Aug 13, 2026
Source:
[email protected]
CVE-2026-9669 Details - Not Deferred