Bug 2486590 (CVE-2026-9669) - CVE-2026-9669 python: Python: Denial of Service via out-of-bounds write in BZ2 decompression
Summary: CVE-2026-9669 python: Python: Denial of Service via out-of-bounds write in BZ...
Keywords:
Status: NEW
Alias: CVE-2026-9669
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2488907 2488908
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-08 23:01 UTC by OSIDB Bzimport
Modified: 2026-06-15 14:40 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-06-08 23:01:16 UTC 
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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