Detections
Analytics

SCA: security update for urllib3 (GHSA-q2q7-5pp4-w6pg)

high Tenable Cloud Security Plugin ID 417812

Description

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

 - An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in
 the authority component, the authority regular expression exhibits catastrophic backtracking, causing a
 denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.
 (CVE-2021-33503)

Solution

Update the urllib3 library and its related packages to version 1.26.5 or later.

See Also

https://github.com/advisories/GHSA-q2q7-5pp4-w6pg

Plugin Details

Severity: High

ID: 417812

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.7

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2021-33503

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/1/2021

Vulnerability Publication Date: 6/1/2021

Reference Information

CVE: CVE-2021-33503

cwe: CWE-400