CVE-2024-40464: Beego privilege escalation vulnerability via sendMail in github.com/beego/beego/v2
Summary
CVE-2024-40464: Beego privilege escalation vulnerability via sendMail in github.com/beego/beego/v2. Affects github.com/beego/beego/v2 versions < 2.2.1. Fixed in 2.2.1. How to fix ↓
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Background
The package under scrutiny is github.com/beego/beego/v2, which is a Go package for building web applications and APIs. It provides a framework for developing scalable and high-performance applications. The package includes various modules for handling routing, middleware, logging, and more. However, a privilege escalation vulnerability has been identified in the sendMail function of the package.
Vulnerability Detail
The vulnerability in github.com/beego/beego/v2 allows an attacker to escalate their privileges by exploiting the sendMail function. By sending a specially crafted email, an attacker can execute arbitrary code with elevated privileges. This can lead to unauthorized access, data breaches, and potential compromise of the entire system. The vulnerability affects versions 0 to 2.2.1 of the package.
How To Fix
Latest published version: v2.3.10 as of 23 Oct 2026
go get github.com/beego/beego/v2@v2.3.10Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
2.2.1
This is the first release that contains the fix.
go get github.com/beego/beego/v2@v2.2.1Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, it is advised to disable the sendMail functionality in the application or implement additional security measures to prevent unauthorized access to the function. Here is an example of how to disable the sendMail function in the code:
package main
import (
"github.com/beego/beego/v2"
"github.com/beego/beego/v2/core/logs"
)
func main() {
// Disable sendMail
logs.SetLogger(logs.AdapterConsole)
}
Conclusion
The privilege escalation vulnerability in the sendMail function of github.com/beego/beego/v2 can lead to unauthorized access and potential compromise of the system. It is crucial to update the package to version 2.2.1 or higher to mitigate the risk. Additionally, implementing security measures or disabling the sendMail functionality can serve as temporary workarounds.
See every vulnerability recorded for github.com/beego/beego/v2 →
FAQ
The vulnerability allows an attacker to escalate their privileges and execute arbitrary code with elevated access. This can lead to unauthorized access, data breaches, and potential compromise of the entire system.
Versions 0 to 2.2.1 of the github.com/beego/beego/v2 package are affected by this vulnerability.
To fix the vulnerability, update the package to version 2.2.1 or higher. Make sure to recompile and redeploy the application after the update.
As a temporary workaround, you can disable the sendMail functionality in the application or implement additional security measures to prevent unauthorized access to the function.
You can find more information about this vulnerability in the official advisory at https://pkg.go.dev/vuln/GO-2024-3016.
Related vulnerabilities
Recent vulnerabilities recorded for github.com/beego/beego/v2.
