What’s Vulnerable › Vulnerabilities

CVE-2025-6547: On Node.js < 3, pbkdf2 silently disregards Uint8Array input, returning static keys

• Severity: critical (CVSS 9.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-23 · updated 2026-06-17
• Weakness: CWE-20

Description

Improper Input Validation vulnerability in pbkdf2 allows Signature Spoofing by Improper Validation.This issue affects pbkdf2: <=3.1.2.

Affected products

• Npm Pbkdf2: from 1.0.0 before 3.1.3 — fixed in 3.1.3

How to fix

Upgrade to a fixed version: Npm Pbkdf2 3.1.3. Check the vendor advisory for mitigations.

References

• https://github.com/browserify/pbkdf2/commit/e3102a8cd4830a3ac85cd0dd011cc002fdde33bb
• https://github.com/browserify/pbkdf2/security/advisories/GHSA-v62p-rq8g-8h59

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