CVE-2026-15310
Published: September 3, 2026Last modified: September 5, 2026
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.
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | python3 | Fixed (3.11.16-r2) |
| 25 LTS | python3 | Fixed (3.12.14-r2) | |
| Stream | python3 | Fixed (3.14.7-r3) | |
| Hardened Containers | 23 LTS | python3 | Fixed (3.11.16-r2) |
| 25 LTS | python3 | Fixed (3.12.14-r2) | |
| Stream | python3 | Fixed (3.14.7-r3) |
References
- https://github.com/python/cpython/commit/1b424c0178a01e155fd0267dc28a8fc1159b33a8
- https://github.com/python/cpython/commit/31980e84b9a708424a0a1dfecde3fc991e313f89
- https://github.com/python/cpython/commit/f897dbf2f36a5935700b7c2d94d4681d2136b7d4
- https://github.com/python/cpython/issues/156002
- https://github.com/python/cpython/pull/156003
- https://mail.python.org/archives/list/[email protected]/thread/YUHXURX2WZGKGNA4ANYBQS2VZRYQ5JNK/