CVE-2026-21713: nodejs node, изтичане на данни

Описание

Оригинално описание

A flaw in Node.js HMAC verification uses a non-constant-time comparison when validating user-provided signatures, potentially leaking timing information proportional to the number of matching bytes. Under certain threat models where high-resolution timing measurements are possible, this behavior could be exploited as a timing oracle to infer HMAC values. Node.js already provides timing-safe comparison primitives used elsewhere in the codebase, indicating this is an oversight rather than an intentional design decision. 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-208 Наблюдима времева разлика

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-2026-21713
• https://nvd.nist.gov/vuln/detail/CVE-2026-21713
• https://nodejs.org/en/blog/vulnerability/march-2026-security-releases