SCA: security update for handlebars (GHSA-p8wg-vrv2-v86f)

critical Tenable Cloud Security Plugin ID 473853

Description

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

- Handlebars provides the power necessary to let users build semantic templates. From 4.0.0 until 4.7.10,
Handlebars lookupProperty returns Function.prototype.constructor before applying the prototype-access deny
list because constructor is an own property of Function.prototype. When an attacker can render a
controlled template with allowProtoMethodsByDefault enabled and an accessible function in the template
context, the template can traverse from that function through its prototype to Function.prototype and then
obtain the Function constructor through the own-property bypass. This permits attacker-controlled
JavaScript to execute with the server application's privileges. This issue is fixed in version 4.7.10.
(CVE-2026-106445)

Solution

Update the handlebars library and its related packages to version 4.7.10 or later.

See Also

https://github.com/advisories/GHSA-p8wg-vrv2-v86f

Plugin Details

Severity: Critical

ID: 473853

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/8/2026

Updated: 10/8/2026

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.5

Vendor

Vendor Severity: Critical

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-106445

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

CVSS v4

Risk Factor: Critical

Base Score: 9.2

Threat Score: 7.2

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/8/2026

Vulnerability Publication Date: 10/6/2026

Reference Information

CVE: CVE-2026-106445