---
id: CVE-2022-2525
aliases:
  - GHSA-jg8w-wgx2-g7q4
  - PYSEC-2026-1231
title: Improper Restriction of Excessive Authentication Attempts in calibreweb
summary: Improper Restriction of Excessive Authentication Attempts in calibreweb
severity: medium
vendor: calibreweb
product: calibreweb
ecosystem: pip
affected:
  - calibreweb < 0.6.20
patched:
  - calibreweb 0.6.20
published: '2023-04-15'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-jg8w-wgx2-g7q4'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2022-2525'
  - url: >-
      https://github.com/janeczku/calibre-web/commit/49e4f540c9b204c7e39b3c27ceadecd83ed60e7e
  - url: 'https://huntr.dev/bounties/9ff87820-c14c-4454-9764-406496254ef0'
tags:
  - osv
  - pip
epss: 0.00769
epssPercentile: 0.54081
ingestedAt: '2026-07-08T18:25:50.669Z'
---

## Overview

Improper Restriction of Excessive Authentication Attempts in GitHub repository janeczku/calibre-web prior to 0.6.20.

## Affected packages

- `calibreweb < 0.6.20`

## Remediation

Upgrade to a patched release:

- `calibreweb 0.6.20`