Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| danifus | pyzipper | affected |
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No vendor fix or workaround currently provided.
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Tracking
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| Source | ID | Title |
|---|---|---|
 Github GHSA |
GHSA-crqm-m339-7m2p | pyzipper has an encryption bypass for small files encrypted using it |
Fri, 17 Jul 2026 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | pyzipper is a replacement for Python's zipfile that can read and write AES encrypted zip files. Prior to 0.4.0, a Python operator precedence bug in pyzipper/zipfile_aes.py caused the AE-2 format to never be automatically selected during encryption, causing encrypted entries to be written in AE-1 format and exposing the plaintext CRC32 checksum in the ZIP header and, for unseekable zip archives, in the datadescripter section, allowing an attacker who possesses the archive to brute-force candidate plaintexts for small or low-entropy files by comparing CRC32 values. This issue is fixed in version 0.4.0. | |
| Title | pyzipper: Encryption bypass for small files encrypted with pyzipper | |
| Weaknesses | CWE-480 | |
| References |
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| Metrics |
cvssV3_1
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Subscriptions
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-17T17:25:08.270Z
Reserved: 2026-05-07T18:04:17.308Z
Link: CVE-2026-44722
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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