CVE-2021-26296

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.

• CWE-352
• CWE-352

• http://packetstormsecurity.com/files/161484/Apache-MyFaces-2.x-Cross-Site-Request-Forgery.htmlExploit, Third Party Advisory, VDB Entry
• http://seclists.org/fulldisclosure/2021/Feb/66Mailing List, Third Party Advisory
• https://lists.apache.org/thread.html/r2b73e2356c6155e9ec78fdd8f72a4fac12f3e588014f5f535106ed9b%40%3Cannounce.apache.org%3EMailing List, Vendor Advisory
• https://security.netapp.com/advisory/ntap-20210528-0007/Third Party Advisory
• http://packetstormsecurity.com/files/161484/Apache-MyFaces-2.x-Cross-Site-Request-Forgery.htmlExploit, Third Party Advisory, VDB Entry
• http://seclists.org/fulldisclosure/2021/Feb/66Mailing List, Third Party Advisory
• https://lists.apache.org/thread.html/r2b73e2356c6155e9ec78fdd8f72a4fac12f3e588014f5f535106ed9b%40%3Cannounce.apache.org%3EMailing List, Vendor Advisory
• https://security.netapp.com/advisory/ntap-20210528-0007/Third Party Advisory

Published

Feb 19, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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