Central Directory (EOCD) Locator record offset value would not be used to
locate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be
assumed to be the previous record in the ZIP archive. This could be abused
to create ZIP archives that are handled differently by the 'zipfile' module
compared to other ZIP implementations.
Remediation maintains this behavior, but checks that the offset specified
in the ZIP64 EOCD Locator record matches the expected value.
Metrics
Affected Vendors & Products
No advisories yet.
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Wed, 08 Oct 2025 19:15:00 +0000
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ssvc
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Wed, 08 Oct 2025 13:45:00 +0000
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First Time appeared |
Python
Python cpython |
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Vendors & Products |
Python
Python cpython |
Tue, 07 Oct 2025 18:30:00 +0000
Type | Values Removed | Values Added |
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References |
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Tue, 07 Oct 2025 18:15:00 +0000
Type | Values Removed | Values Added |
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Description | The 'zipfile' module would not check the validity of the ZIP64 End of Central Directory (EOCD) Locator record offset value would not be used to locate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be assumed to be the previous record in the ZIP archive. This could be abused to create ZIP archives that are handled differently by the 'zipfile' module compared to other ZIP implementations. Remediation maintains this behavior, but checks that the offset specified in the ZIP64 EOCD Locator record matches the expected value. | |
Title | ZIP64 End of Central Directory (EOCD) Locator record offset not checked | |
References |
| |
Metrics |
cvssV3_1
|

Status: PUBLISHED
Assigner: PSF
Published:
Updated: 2025-10-08T18:41:19.675Z
Reserved: 2025-07-28T21:05:06.237Z
Link: CVE-2025-8291

Updated: 2025-10-08T18:41:10.269Z

Status : Awaiting Analysis
Published: 2025-10-07T18:16:00.317
Modified: 2025-10-08T19:38:09.863
Link: CVE-2025-8291

No data.

Updated: 2025-10-08T13:35:32Z