CVE-2026-71437

Katalog CVE

CVSS 6.5 · Medium EPSS 0,50%

Kerentanan Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'). Skor CVSS 4.0 6.5 (Medium) menurut github.com.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

6 Agustus 2026

Terakhir diubah

8 September 2026

Status NVD

Awaiting Analysis

CVSS 4.0

6.5 (Medium), sumber github.com
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

EPSS (30 hari)

0,50% peluang dieksploitasi; lebih tinggi dari 41,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/mermaid-js/mermaid/commit/99af3fc35ef0a9a9c8c6314521344d67523ddccf
• https://github.com/mermaid-js/mermaid/pull/8022
• https://github.com/mermaid-js/mermaid/releases/tag/mermaid@11.16.1
• https://github.com/mermaid-js/mermaid/security/advisories/GHSA-3rrr-jr9j-h3q3