Detections
Analytics

SCA: security update for rack (GHSA-rx22-g9mx-qrhv)

medium Tenable Cloud Security Plugin ID 439701

Description

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

 - Rack is a modular Ruby web server interface. From version 3.2.0 to before version 3.2.6,
 Rack::Multipart::Parser unfolds folded multipart part headers incorrectly. When a multipart header
 contains an obs-fold sequence, Rack preserves the embedded CRLF in parsed parameter values such as
 filename or name instead of removing the folded line break during unfolding. As a result, applications
 that later reuse those parsed values in HTTP response headers may be vulnerable to downstream header
 injection or response splitting. This issue has been patched in version 3.2.6. (CVE-2026-26962)

Solution

Update the rack library and its related packages to version 3.2.6 or later.

See Also

https://github.com/advisories/GHSA-rx22-g9mx-qrhv

Plugin Details

Severity: Medium

ID: 439701

Version: Revision 1.8

Type: Local

Family: SCA Checks

Published: 4/3/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.71

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-26962

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/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: 4/2/2026

Vulnerability Publication Date: 4/2/2026

Reference Information

CVE: CVE-2026-26962

cwe: CWE-93