LNbits up to 0.12.12 LNURL Authentication server-side request forgery

Summaryinfo

A vulnerability marked as critical has been reported in LNbits up to 0.12.12. The affected element is an unknown function of the component LNURL Authentication. Performing a manipulation results in server-side request forgery. This vulnerability was named CVE-2025-32013. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as critical, was found in LNbits up to 0.12.12. This affects an unknown code of the component LNURL Authentication. The manipulation with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

LNbits is a Lightning wallet and accounts system. A Server-Side Request Forgery (SSRF) vulnerability has been discovered in LNbits' LNURL authentication handling functionality. When processing LNURL authentication requests, the application accepts a callback URL parameter and makes an HTTP request to that URL using the httpx library with redirect following enabled. The application doesn't properly validate the callback URL, allowing attackers to specify internal network addresses and access internal resources.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2025-32013 since 04/01/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/06/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• LNbits

Version

• 0.12.0
• 0.12.1
• 0.12.2
• 0.12.3
• 0.12.4
• 0.12.5
• 0.12.6
• 0.12.7
• 0.12.8
• 0.12.9
• 0.12.10
• 0.12.11
• 0.12.12

Website

• Product: https://github.com/lnbits/lnbits/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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