Detections
Analytics

SCA: security update for rack (GHSA-whrj-4476-wvmp)

medium Tenable Self-Hosted Container Security Plugin ID 437743

Description

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

 - Rack is a modular Ruby web server interface. Prior to versions 2.2.22, 3.1.20, and 3.2.5,
 `Rack::Directory` generates an HTML directory index where each file entry is rendered as a clickable link.
 If a file exists on disk whose basename starts with the `javascript:` scheme (e.g. `javascript:alert(1)`),
 the generated index contains an anchor whose `href` is exactly `javascript:alert(1)`. Clicking the entry
 executes JavaScript in the browser (demonstrated with `alert(1)`). Versions 2.2.22, 3.1.20, and 3.2.5 fix
 the issue. (CVE-2026-25500)

See Also

https://github.com/advisories/GHSA-whrj-4476-wvmp

Plugin Details

Severity: Medium

ID: 437743

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 2/17/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.59

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-25500

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.9

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/17/2026

Vulnerability Publication Date: 2/17/2026

Reference Information

CVE: CVE-2026-25500

IAVB: 2026-B-0048

cwe: CWE-79