compressions, Python could use an attacker-controlled size to
pre-allocate memory, possibly resulting in memory exhaustion.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Tue, 25 Aug 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Tue, 25 Aug 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Python
Python cpython |
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| Vendors & Products |
Python
Python cpython |
Tue, 25 Aug 2026 15:15:00 +0000
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| 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
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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
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CWE-400
Uncontrolled Resource Consumption