CVE-2021-26296 - CVE House
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Status published High CVE-2021-26296

Cross-Site Request Forgery (CSRF) vulnerability in Apache MyFaces

Vulnerability Description

In the default configuration, Apache MyFaces Core versions 2.2.0 to 2.2.13, 2.3.0 to 2.3.7, 2.3-next-M1 to 2.3-next-M4, and 3.0.0-RC1 use cryptographically weak implicit and explicit cross-site request forgery (CSRF) tokens. Due to that limitation, it is possible (although difficult) for an attacker to calculate a future CSRF token value and to use that value to trick a user into executing unwanted actions on an application.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Apache MyFaces would like to thank Wolfgang Ettlinger (Certitude Consulting GmbH)

Affected Vendor

Apache Software Foundation

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Affected Software

Apache MyFaces Core
Vulnerable Versions:
Apache MyFaces Core 2.2, Apache MyFaces Core 2.3, Apache MyFaces Core 2.3-next, Apache MyFaces Core 3.0

Timeline

Official Publish: February 19th, 2021
Last Modified: February 13th, 2025
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses (CWE)