Detections
Analytics

SCA: security update for rack (GHSA-6xw4-3v39-52mm)

high Tenable Cloud Security Plugin ID 435565

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 2.2.20, 3.1.18, and 3.2.3,
 `Rack::Request#POST` reads the entire request body into memory for `Content-Type: application/x-www-form-
 urlencoded`, calling `rack.input.read(nil)` without enforcing a length or cap. Large request bodies can
 therefore be buffered completely into process memory before parsing, leading to denial of service (DoS)
 through memory exhaustion. Users should upgrade to Rack version 2.2.20, 3.1.18, or 3.2.3, anu of which
 enforces form parameter limits using `query_parser.bytesize_limit`, preventing unbounded reads of
 `application/x-www-form-urlencoded` bodies. Additionally, enforce strict maximum body size at the proxy or
 web server layer (e.g., Nginx `client_max_body_size`, Apache `LimitRequestBody`). (CVE-2025-61919)

See Also

https://github.com/advisories/GHSA-6xw4-3v39-52mm

Plugin Details

Severity: High

ID: 435565

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 10/10/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.89

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2025-61919

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/10/2025

Vulnerability Publication Date: 10/10/2025

Reference Information

CVE: CVE-2025-61919

cwe: CWE-400