What’s Vulnerable › Vulnerabilities

CVE-2023-52428

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-02-11 · updated 2026-06-17
• Weakness: CWE-770

Description

In Connect2id Nimbus JOSE+JWT before 9.37.2, an attacker can cause a denial of service (resource consumption) via a large JWE p2c header value (aka iteration count) for the PasswordBasedDecrypter (PBKDF2) component.

Affected products

• Connect2id Nimbus JOSE+JWT: before 9.37.2 — fixed in 9.37.2

How to fix

Upgrade to a fixed version: Connect2id Nimbus JOSE+JWT 9.37.2. Check the vendor advisory for mitigations.

References

• https://bitbucket.org/connect2id/nimbus-jose-jwt/commits/3b3b77e
• https://bitbucket.org/connect2id/nimbus-jose-jwt/issues/526/
• https://connect2id.com/products/nimbus-jose-jwt
• https://bitbucket.org/connect2id/nimbus-jose-jwt/commits/3b3b77e
• https://bitbucket.org/connect2id/nimbus-jose-jwt/issues/526/
• https://connect2id.com/products/nimbus-jose-jwt

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