compressions, Python could use an attacker-controlled size to
pre-allocate memory, possibly resulting in memory exhaustion.
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Tue, 25 Aug 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 25 Aug 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Python
Python cpython |
|
| Vendors & Products |
Python
Python cpython |
Tue, 25 Aug 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | zipfile: bzip2/LZMA/Zstandard members decompress without a max_length bound, defeating chunked-read memory limits | |
| Weaknesses | CWE-400 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: PSF
Published:
Updated: 2026-08-25T17:43:24.947Z
Reserved: 2026-07-09T17:39:12.652Z
Link: CVE-2026-15310
Updated: 2026-08-25T17:39:17.557Z
Status : Received
Published: 2026-08-25T15:16:30.027
Modified: 2026-08-25T18:17:51.593
Link: CVE-2026-15310
No data.
OpenCVE Enrichment
Updated: 2026-08-25T17:15:05Z