Apache CXF up to 3.6.11/4.1.7/4.2.2 DefaultEncryptingOAuthDataProvider access control

Summaryinfo

A vulnerability, which was classified as critical, was found in Apache CXF up to 3.6.11/4.1.7/4.2.2. Impacted is the function DefaultEncryptingOAuthDataProvider. The manipulation results in access control. This vulnerability is identified as CVE-2026-68481. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Apache CXF up to 3.6.11/4.1.7/4.2.2. It has been classified as critical. Affected is the function DefaultEncryptingOAuthDataProvider. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In Apache CXF's DefaultEncryptingOAuthDataProvider, revoked access tokens still decrypt successfully, and TokenIntrospectionService reports active:true. The same applies to refresh tokens. This violates the RFC stipulations that 'The authorization server MUST invalidate the token.' and 'introspection of a revoked token MUST return {"active":false}'. Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.

The advisory is shared for download at lists.apache.org. This vulnerability is traded as CVE-2026-68481 since 07/30/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/06/2026). The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading to version 3.6.12, 4.1.8 or 4.2.3 eliminates this vulnerability.

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Productinfo

Type

• Application Server Software

Vendor

• Apache

Name

• CXF

Version

• 3.6.0
• 3.6.1
• 3.6.2
• 3.6.3
• 3.6.4
• 3.6.5
• 3.6.6
• 3.6.7
• 3.6.8
• 3.6.9
• 3.6.10
• 3.6.11
• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.1.6
• 4.1.7
• 4.2.0
• 4.2.1
• 4.2.2

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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CPE 2.2info

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