Detections
Analytics

SCA: security update for Werkzeug (GHSA-87hc-h4r5-73f7)

medium Tenable Self-Hosted Container Security Plugin ID 437464

Description

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

 - Werkzeug is a comprehensive WSGI web application library. Prior to version 3.1.5, Werkzeug's safe_join
 function allows path segments with Windows device names that have file extensions or trailing spaces. On
 Windows, there are special device names such as CON, AUX, etc that are implicitly present and readable in
 every directory. Windows still accepts them with any file extension, such as CON.txt, or trailing spaces
 such as CON. This issue has been patched in version 3.1.5. (CVE-2026-21860)

See Also

https://github.com/advisories/GHSA-87hc-h4r5-73f7

Plugin Details

Severity: Medium

ID: 437464

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 2/3/2026

Updated: 6/1/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

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-2026-21860

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 1/8/2026

Vulnerability Publication Date: 1/8/2026

Reference Information

CVE: CVE-2026-21860

cwe: CWE-67