CVE-2026-89238
Last modified
CVE-2026-89238 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Wss4j | < 2.4.4 |
| Apache | Wss4j | >= 3.0.0, < 3.0.6 |
| Apache | Wss4j | >= 4.0.0, < 4.0.2 |
References
- https://lists.apache.org/thread.html/1lv4hpl8kon1ns5txjnhn2m2sh9rl22wVendor Advisory, Mailing List
- https://www.openwall.com/lists/oss-security/2026/09/30/11Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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