Detections
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SCA: security update for penelope-shell-handler (GHSA-f42x-p2mx-hm8r)

medium Tenable Self-Hosted Container Security Plugin ID 445470

Description

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

 - Penelope Shell Handler is a post-exploitation shell handler for authorized security testing. Prior to
 0.20.0, the Unix download() implementation in penelope.py used tar.extractall(local_download_folder) on
 tar archives returned by remote sessions without validating member paths, allowing a malicious or
 compromised session to write files outside the intended download directory and potentially overwrite
 ~/.penelope/peneloperc. This issue is fixed in version 0.20.0. (CVE-2026-50558)

Solution

Update the penelope-shell-handler library and its related packages to version 0.20.0 or later.

See Also

https://github.com/advisories/GHSA-f42x-p2mx-hm8r

Plugin Details

Severity: Medium

ID: 445470

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 7/29/2026

Updated: 7/29/2026

Risk Information

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 4.5

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

CVSS Score Source: CVE-2026-50558

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/29/2026

Vulnerability Publication Date: 7/29/2026

Reference Information

CVE: CVE-2026-50558

cwe: CWE-22