---
title: "CVE-2025-32013: LNbits Lightning Network Payment System Vulnerable to Server-Side Request Forgery via LNURL Authentication Callback"
url: https://erroneo.us/security/cve/CVE-2025-32013/
description: "CVE-2025-32013 (lnbits (PyPI)): LNbits is a Lightning wallet and accounts system. A Server-Side Request Forgery (SSRF) vulnerability has been discovered in…"
type: vulnerability-record
section: "Security Digest"
date_published: 2025-04-06
date_modified: 2025-04-10
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2025-32013"
kev: false
cvss: 9.3
epss: 0.00648
license: All rights reserved. Quote with attribution and a link.
---

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

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Not in CISA KEV , but CISA’s SSVC assessment records a public proof-of-concept, so attack code exists.
- EPSS 0.6% , percentile 50: FIRST’s model estimates a 0.6% chance of exploitation activity in the next 30 days, higher than 50% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes lnbits (PyPI) <= 0.12.12, no fixed version listed . Check your lockfile, including transitive dependencies.

## What it 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.

## Affected packages

- PyPI `lnbits` <= 0.12.12 → fixed: none listed

## Affected products (CVE record)

- lnbits lnbits: <= 0.12.12

## Severity

- GitHub_M CVSS 4.0: 9.3 `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`
- GitHub CVSS 4.0: 9.3 `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`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation poc , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.65% probability of exploitation activity in the next 30 days; percentile 50.

## Sources

- [GitHub Advisory GHSA-qp8j-p87f-c8cc](https://github.com/advisories/GHSA-qp8j-p87f-c8cc)
- [CVE.org record CVE-2025-32013](https://www.cve.org/CVERecord?id=CVE-2025-32013)
- [NVD entry CVE-2025-32013](https://nvd.nist.gov/vuln/detail/CVE-2025-32013)
- [github.com](https://github.com/lnbits/lnbits/security/advisories/GHSA-qp8j-p87f-c8cc)
- [github.com](https://github.com/pypa/advisory-database/tree/main/vulns/lnbits/PYSEC-2025-16.yaml)

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Source page: https://erroneo.us/security/cve/CVE-2025-32013/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt