CVE-2026-78384

Description

CompressionUtils.inflate() decompressed attacker-controlled DEFLATE data with no output-size cap. A small (~KB) crafted payload could expand to gigabytes on the heap. Reachable via JWE decryption when zip=DEF (e.g. JoseSessionTokenProvider with RSA-OAEP key wrap) and via SAML redirect/POST binding token inflation — in both cases decompression happens before/independent of trust validation. Fix: Added a configurable maximum inflated-size cap (default 10 MiB, org.apache.cxf.compression-max-inflated-size system property) to CompressionUtils.inflate(); aborts with DataFormatException once exceeded. Users are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.

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Produits concernés

• Apache Software Foundation Apache CXF
• Apache cxf

Scores CVSS

Faiblesses (CWE)

• CWE-409

Références

• https://lists.apache.org/thread.html/xoh63rlxn0m9koft5j4jxrfd0hf81v3q Issue TrackingVendor Advisory
• http://www.openwall.com/lists/oss-security/2026/10/09/6 Mailing ListThird Party Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories