Detections
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SCA: security update for pyzipper (GHSA-crqm-m339-7m2p)

medium Tenable Self-Hosted Container Security Plugin ID 441876

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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.
 (CVE-2026-44722)

Solution

Update the pyzipper library and its related packages to version 0.4.0 or later.

See Also

https://github.com/advisories/GHSA-crqm-m339-7m2p

Plugin Details

Severity: Medium

ID: 441876

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 5/14/2026

Updated: 7/20/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.69

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-44722

CVSS v3

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 5.4

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/14/2026

Vulnerability Publication Date: 5/14/2026

Reference Information

CVE: CVE-2026-44722

cwe: CWE-480