What’s Vulnerable › Vulnerabilities

CVE-2024-29371

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-17 · updated 2026-10-27
• Weakness: CWE-1259

Description

In jose4j before 0.9.6, an attacker can cause a Denial-of-Service (DoS) condition by crafting a malicious JSON Web Encryption (JWE) token with an exceptionally high compression ratio. When this token is processed by the server, it results in significant memory allocation and processing time during decompression.

Affected products

• Jose4J Project Jose4J: before 0.9.5 — fixed in 0.9.5

How to fix

Upgrade to a fixed version: Jose4J Project Jose4J 0.9.5. Check the vendor advisory for mitigations.

References

• https://bitbucket.org/b_c/jose4j/issues/220/vuln-zip-bomb-attack
• https://bitbucket.org/b_c/jose4j/issues/220/vuln-zip-bomb-attack

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