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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://bitbucket.org/b_c/jose4j/issues/220/vuln-zip-bomb-attack Exploit, Issue Tracking, Mitigation
- https://bitbucket.org/b_c/jose4j/issues/220/vuln-zip-bomb-attack Exploit, Issue Tracking, Mitigation
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · jose4j_projectNVD modified 2026-10-27 18:10
Affected (CPE criteria) 1
cpe:2.3:a:jose4j_project:jose4j:*:*:*:*:*:*:*:*
References 2
- https://bitbucket.org/b_c/jose4j/issues/220/vuln-zip-bomb-attack Exploit, Issue Tracking, Mitigation
- https://bitbucket.org/b_c/jose4j/issues/220/vuln-zip-bomb-attack Exploit, Issue Tracking, Mitigation