CVE-2026-21717: nodejs node, слаба криптография

Описание

Оригинално описание

A flaw in V8's string hashing mechanism causes integer-like strings to be hashed to their numeric value, making hash collisions trivially predictable. By crafting a request that causes many such collisions in V8's internal string table, an attacker can significantly degrade performance of the Node.js process. The most common trigger is any endpoint that calls `JSON.parse()` on attacker-controlled input, as JSON parsing automatically internalizes short strings into the affected hash table. This vulnerability affects **20.x, 22.x, 24.x, and 25.x**.

Засегнати продукти

• nodejs node: 20.20.1 до 20.20.1; 22.22.1 до 22.22.1; 24.14.0 до 24.14.0; 25.8.1 до 25.8.1; 4.0 преди 4.*; 5.0 преди 5.*; 6.0 преди 6.*; 7.0 преди 7.*; 8.0 преди 8.*; 9.0 преди 9.*; 10.0 преди 10.*; 11.0 преди 11.*; 12.0 преди 12.*; 13.0 преди 13.*; 14.0 преди 14.*; 15.0 преди 15.*; 16.0 преди 16.*; 17.0 преди 17.*; 18.0 преди 18.*; 19.0 преди 19.*

Вид слабост

• CWE-328 Използване на слаб криптографски хеш

История

Други уязвимости в nodejs node

• 7.4CVE-2026-106069
• 3.3CVE-2026-106073
• 3.6CVE-2026-106071
• 3.7CVE-2026-106070
• 6.7CVE-2026-106072

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-21717
• https://nvd.nist.gov/vuln/detail/CVE-2026-21717
• https://nodejs.org/en/blog/vulnerability/march-2026-security-releases