SCA: security update for js-cookie (GHSA-qjx8-664m-686j)

high Tenable Self-Hosted Container Security Plugin ID 442311

Description

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

- JavaScript Cookie is a JavaScript API for handling cookies, client-side. Prior to version 3.0.7, js-
cookie's internal assign() helper copies properties with for...in + plain assignment. When the source
object is produced by JSON.parse, the JSON object's "__proto__" member is an own enumerable property, so
the for…in enumerates it and the target[key] = source[key] write triggers the Object.prototype.__proto__
setter on the fresh target ({}). The result is a per-instance prototype hijack: Object.prototype itself is
untouched, but the merged attributes object now inherits attacker-controlled keys. Because the consuming
set() function then enumerates the merged object with another for...in, every key the attacker placed on
the polluted prototype lands in the resulting Set-Cookie string as an attribute pair. The attacker can set
domain=, secure=, samesite=, expires=, and path= on cookies whose attributes the developer thought were
locked down. This issue has been patched in version 3.0.7. (CVE-2026-46625)

Solution

Update the js-cookie library and its related packages to version 3.0.7 or later.

See Also

https://github.com/advisories/GHSA-qjx8-664m-686j

Plugin Details

Severity: High

ID: 442311

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 5/22/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 94.14

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:C/A:N

CVSS Score Source: CVE-2026-46625

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: 5/21/2026

Vulnerability Publication Date: 5/21/2026

Reference Information

CVE: CVE-2026-46625