CVE-2021-26296: Cross-Site Request Forgery (CSRF) vulnerability in Apache MyFaces
Apache MyFaces is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated user to visit a malicious Web site, a remote attacker could send a malformed HTTP request to perform unauthorized actions. An attacker could exploit this vulnerability to perform cross-site scripting attacks, Web cache poisoning, and other malicious activities.
Other sources
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.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-26296?
CVE-2021-26296 is a vulnerability in Apache MyFaces that allows for cross-site request forgery (CSRF) attacks due to weak CSRF tokens.
How does CVE-2021-26296 impact Apache MyFaces?
CVE-2021-26296 affects Apache MyFaces 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.
What is the severity of CVE-2021-26296?
CVE-2021-26296 has a severity rating of 8.8, which is considered high.
How can I fix CVE-2021-26296 in Apache MyFaces?
To fix CVE-2021-26296 in Apache MyFaces, upgrade to a version that addresses the vulnerability.
Where can I find more information about CVE-2021-26296?
You can find more information about CVE-2021-26296 in the following references: [reference 1](https://exchange.xforce.ibmcloud.com/vulnerabilities/197017), [reference 2](https://www.ibm.com/support/pages/node/6465127), [reference 3](http://packetstormsecurity.com/files/161484/Apache-MyFaces-2.x-Cross-Site-Request-Forgery.html).