Use of Incorrect Operator Affecting pyzipper package, versions [,0.4.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-PYZIPPER-17670566
- published29 Jun 2026
- disclosed14 May 2026
- creditllavarello
Introduced: 14 May 2026
CVE-2026-44722 (opens in a new tab)How to fix?
Upgrade pyzipper to version 0.4.0 or higher.
Overview
pyzipper is an AES encryption for zipfile.
Affected versions of this package are vulnerable to Use of Incorrect Operator via the zipfile_aes.py process. An attacker can recover the contents of small or low-entropy encrypted files by brute-forcing candidate plaintexts and comparing their CRC32 checksums to the unencrypted CRC32 value stored in the ZIP header.