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CVE-2026-89238— Apache WSS4J: WSS4J EncryptedHeader child confusion causing wrong protected-header selection

Quick assessment

Affected
Apache Software Foundation Apache WSS4J
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WSS4J 中 EncryptedHeader 子元素混淆漏洞可能允许攻击者将其控制的明文元素提升为解密后的头部，从而导致机密性保护范围错误以及潜在的安全策略绕过。 建议用户升级至 4.0.2、3.0.6 或 2.4.4 版本，这些版本已修复该问题。

AI Predicted 5.3 Difficulty: Moderate

Possible ATT&CK Techniques 1 AI

T1562.001

Affected Version Matrix 3

VendorProduct Version RangeStatus
Apache Software Foundation Apache WSS4J 4.0.0< 4.0.2 affected
3.0.0< 3.0.6 affected
< 2.4.4 affected
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I. Basic Information for CVE-2026-89238

Vulnerability Information
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Vulnerability Title
Apache WSS4J: WSS4J EncryptedHeader child confusion causing wrong protected-header selection
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Apache Software Foundation Apache WSS4J 4.0.0 ~ 4.0.2 -

II. Public POCs for CVE-2026-89238

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III. Intelligence Information for CVE-2026-89238

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Mailing List Discussions for CVE-2026-89238 (1)

Same Patch Batch · Apache Software Foundation · 2026-09-30 · 19 CVEs total

CVE-2026-102508 9.2 CRITICAL Apache PLC4X: OPC UA secure channel: integrity bypass, unverifiable server certificate, an
CVE-2026-94052 9.1 CRITICAL Apache MINA SSHD: LDAP password authentication ineffective
CVE-2026-77185 9.1 CRITICAL Apache MINA SSHD: Asynchronous authentication can bypass signature verification
CVE-2026-94053 9.1 CRITICAL Apache MINA SSHD: LDAP injection in sshd-ldap
CVE-2026-102509 8.7 HIGH Apache PLC4X, Apache PLC4X: Pre-authentication resource exhaustion in the OPC UA driver an
CVE-2026-102510 8.7 HIGH Apache PLC4X: Go binding: unbounded allocation and framing failures on wire-controlled len
CVE-2026-102511 8.5 HIGH Apache PLC4X, Apache PLC4X, Apache PLC4X, Apache PLC4X: ADS discovery accepts spoofed resp
CVE-2026-93994 8.1 HIGH Apache MINA SSHD: Repeated-publickey policy bypass on server
CVE-2026-94002 7.5 HIGH Apache MINA SSHD: Memory exhaustion in SFTP client via unsolicited SFTP replies
CVE-2026-93995 6.5 MEDIUM Apache MINA SSHD: Remote execution of JGit "archive -o=file.zip" can write file on the ser
CVE-2026-94029 6.5 MEDIUM Apache MINA SSHD: Memory exhaustion in SFTP v6 check-file-name/check-file-handle extension
CVE-2026-93996 6.5 MEDIUM Apache MINA SSHD: Memory exhaustion DoS via unbounded SCP command line read
CVE-2026-95616 Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.5
CVE-2026-85532 Apache WSS4J: Insufficient Validation of Derived-Key Parameters
CVE-2026-87830 Apache WSS4J: Streaming WS-SecurityPolicy validation may skip element-protection checks.
CVE-2026-88920 Apache WSS4J: SAML Sender-Vouches Authentication Bypass
CVE-2026-92121 Apache WSS4J: WS-SecurityPolicy signature checks skipped in the streaming code after an ST
CVE-2026-92899 Apache WSS4J: UsernameToken replay protection bypassed by re-encoding the Nonce

IV. Related Vulnerabilities

Same product: Apache WSS4J
Same vendor: Apache Software Foundation

V. Comments for CVE-2026-89238

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