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
NISTPrimary
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: 26.76%
Affected Products (NVD)
VendorProductVersion
apachewss4j
𝑥
< 2.4.4
apachewss4j
3.0.0 ≤
𝑥
< 3.0.6
apachewss4j
4.0.0 ≤
𝑥
< 4.0.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
wss4j
bookworm
postponed
forky
vulnerable
sid
vulnerable
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
wss4j
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
xenial
needs-triage
Common Weakness Enumeration
References
https://lists.apache.org/thread.html/1lv4hpl8kon1ns5txjnhn2m2sh9rl22w
http://www.openwall.com/lists/oss-security/2026/09/30/11