CVE-2024-29371: jose4j is vulnerable to DoS via compressed JWE content

December 17, 2025 (updated January 6, 2026)

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.

References

bitbucket.org/b_c/jose4j/commits/19a90a64c47bb07c4aa5462f1316d5c293d81fcf
bitbucket.org/b_c/jose4j/issues/220/vuln-zip-bomb-attack
bitbucket.org/b_c/jose4j/wiki/Home
github.com/advisories/GHSA-3677-xxcr-wjqv
nvd.nist.gov/vuln/detail/CVE-2024-29371

Code Behaviors & Features

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