CVE-2026-89238

EUVD-2026-89794
WSS4J EncryptedHeader child confusion could promote an attacker-controlled plaintext element as the decrypted header, leading to incorrect confidentiality coverage and possible policy bypass.
Users are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
apacheCNA
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
apachewss4j
4.0.0 ≤
𝑥
< 4.0.2
CNA
apachewss4j
3.0.0 ≤
𝑥
< 3.0.6
CNA
apachewss4j
𝑥
< 2.4.4
CNA
Debian logo
Debian Releases
Debian Product
Codename
wss4j
bookworm
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
Common Weakness Enumeration
References
https://lists.apache.org/thread.html/1lv4hpl8kon1ns5txjnhn2m2sh9rl22w
http://www.openwall.com/lists/oss-security/2026/09/30/11