CVE-2026-15310

Public on 2026-08-25
Modified on 2026-08-28
Description
When decompressing crafted zip files using the bzip/LZMA/Zstandard

compressions, Python could use an attacker-controlled size to

pre-allocate memory, possibly resulting in memory exhaustion.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
6.2
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Core python Not Affected
Amazon Linux 2 - Core python3 Pending Fix
Amazon Linux 2 - Python3 Extra python3 No Fix Planned
Amazon Linux 2023 python3.11 Pending Fix
Amazon Linux 2023 python3.12 Pending Fix
Amazon Linux 2023 python3.13 Pending Fix
Amazon Linux 2023 python3.14 Pending Fix
Amazon Linux 2023 python3.9 Pending Fix
Amazon Linux 2 - Python3.8 Extra python38 No Fix Planned

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H