SCA: security update for set-in (GHSA-2c4m-g7rx-63q7)

critical Tenable Self-Hosted Container Security Plugin ID 437695

Description

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

- set-in provides the set value of nested associative structure given array of keys. A prototype pollution
vulnerability exists in the the npm package set-in (>=2.0.1, < 2.0.5). Despite a previous fix that
attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is
still possible to pollute Object.prototype via a crafted input using Array.prototype. This has been fixed
in version 2.0.5. (CVE-2026-26021)

See Also

https://github.com/advisories/GHSA-2c4m-g7rx-63q7

Plugin Details

Severity: Critical

ID: 437695

Version: Revision 1.9

Type: Local

Family: SCA Checks

Published: 2/11/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.95

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2026-26021

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.4

Threat Score: 8.5

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/11/2026

Vulnerability Publication Date: 2/11/2026

Reference Information

CVE: CVE-2026-26021