Detections
Analytics

SCA: security update for py7zr (GHSA-gjrg-mpp7-g774)

high Tenable Cloud Security Plugin ID 443701

Description

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

 - py7zr is a Python-based library and utility to support 7zip archive compression, decompression, encryption
 and decryption. Prior to 1.1.3, py7zr's Worker.decompress() extracted archive entries without tracking
 total decompressed size, allowing a crafted .7z file such as a 15.6 KB archive that expands to 100 MB to
 exhaust disk or memory before extraction completes. This issue is fixed in version 1.1.3. (CVE-2026-55195)

Solution

Update the py7zr library and its related packages to version 1.1.3 or later.

See Also

https://github.com/advisories/GHSA-gjrg-mpp7-g774

Plugin Details

Severity: High

ID: 443701

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/20/2026

Updated: 7/9/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-55195

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/19/2026

Vulnerability Publication Date: 6/19/2026

Reference Information

CVE: CVE-2026-55195

cwe: CWE-409