Detections
Analytics

SCA: security update for puma (GHSA-w64w-qqph-5gxm)

high Tenable Cloud Security Plugin ID 423035

Description

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

 - In Puma (RubyGem) before 4.3.5 and 3.12.6, a client could smuggle a request through a proxy, causing the
 proxy to send a response back to another unknown client. If the proxy uses persistent connections and the
 client adds another request in via HTTP pipelining, the proxy may mistake it as the first request's body.
 Puma, however, would see it as two requests, and when processing the second request, send back a response
 that the proxy does not expect. If the proxy has reused the persistent connection to Puma to send another
 request for a different client, the second response from the first client will be sent to the second
 client. This is a similar but different vulnerability from CVE-2020-11076. The problem has been fixed in
 Puma 3.12.6 and Puma 4.3.5. (CVE-2020-11077)

See Also

https://github.com/advisories/GHSA-w64w-qqph-5gxm

Plugin Details

Severity: High

ID: 423035

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 3/29/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.18

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:P/A:N

CVSS Score Source: CVE-2020-11077

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:H/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: 5/22/2020

Vulnerability Publication Date: 5/22/2020

Reference Information

CVE: CVE-2020-11077

cwe: CWE-444