---
id: CVE-2016-3691
aliases:
  - GHSA-799h-qr84-pcrp
  - PYSEC-2026-648
title: Kallithea Routes CSRF Bypass
summary: Kallithea Routes CSRF Bypass
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
vendor: kallithea
product: kallithea
ecosystem: pip
affected:
  - kallithea < 0.3.2
patched:
  - kallithea 0.3.2
published: '2022-05-13'
updated: '2026-07-06'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-799h-qr84-pcrp'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2016-3691'
  - url: 'https://github.com/NexMirror/Kallithea'
  - url: 'http://www.openwall.com/lists/oss-security/2016/05/02/3'
tags:
  - osv
  - pip
epss: 0.00626
epssPercentile: 0.48327
ingestedAt: '2026-07-08T18:25:46.822Z'
---

## Overview

Routes in Kallithea before 0.3.2 allows remote attackers to bypass the CSRF protection by using the GET HTTP request method.

## Affected packages

- `kallithea < 0.3.2`

## Remediation

Upgrade to a patched release:

- `kallithea 0.3.2`