Detections
Analytics

SCA: security update for mermaid (GHSA-3rrr-jr9j-h3q3)

medium Tenable Cloud Security Plugin ID 445750

Description

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

 - Mermaid is a JavaScript tool that uses Markdown-inspired text to create and modify diagrams and charts.
 From version 11.5.0 until 11.16.1, Mermaid Architecture Diagrams are vulnerable to prototype pollution
 when a diagram defines a group with an id of __proto__. Because the group id is used directly as an object
 property key without validation, an attacker who can supply diagram text can pollute Object.prototype,
 potentially affecting the behavior of the embedding application. This issue is fixed in version 11.16.1.
 (CVE-2026-71437)

Solution

Update the mermaid library and its related packages to version 11.16.1 or later.

See Also

https://github.com/advisories/GHSA-3rrr-jr9j-h3q3

Plugin Details

Severity: Medium

ID: 445750

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 8/7/2026

Updated: 8/7/2026

Risk Information

Vendor

Vendor Severity: Medium

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-2026-71437

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: Medium

Base Score: 6.5

Threat Score: 2.6

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 8/6/2026

Vulnerability Publication Date: 8/6/2026

Reference Information

CVE: CVE-2026-71437