Detections
Analytics

SCA: security update for Twisted (GHSA-grgv-6hw6-v9g4)

high Tenable Cloud Security Plugin ID 441232

Description

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

 - Twisted is an event-based framework for internet applications, supporting Python 3.6+. Prior to 26.4.0rc2,
 the twisted.names module is vulnerable to a Denial of Service (DoS) attack via resource exhaustion during
 DNS name decompression. A remote, unauthenticated attacker can exploit this by sending a crafted TCP DNS
 packet containing deeply chained compression pointers. This flaw bypasses previous loop-prevention logic,
 causing the single-threaded Twisted reactor to hang while processing millions of recursive lookups,
 effectively freezing the server. This vulnerability is fixed in 26.4.0rc2. (CVE-2026-42304)

Solution

Update the Twisted library and its related packages to version 26.4.0rc2 or later.

See Also

https://github.com/advisories/GHSA-grgv-6hw6-v9g4

Plugin Details

Severity: High

ID: 441232

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 5/6/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.69

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2026-42304

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/5/2026

Vulnerability Publication Date: 5/5/2026

Reference Information

CVE: CVE-2026-42304