---
id: GHSA-55p4-8j34-jv53
title: >-
  Duplicate Advisory: Vikunja: Unbounded CSV row cardinality permits API process
  termination
summary: >-
  Duplicate Advisory: Vikunja: Unbounded CSV row cardinality permits API process
  termination
severity: high
cvss: 6.5
cwe:
  - CWE-400
vendor: api
product: code.vikunja.io/api
ecosystem: go
affected:
  - code.vikunja.io/api = 2.5.0
published: '2026-09-15'
updated: '2026-10-09'
sourceUpdated: '2026-10-09T20:53:09Z'
source: GHSA
sourceUrl: 'https://github.com/advisories/GHSA-55p4-8j34-jv53'
references:
  - url: >-
      https://github.com/go-vikunja/vikunja/security/advisories/GHSA-pqf9-h8g4-8gmh
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-91969'
  - url: >-
      https://www.vulncheck.com/advisories/vikunja-before-2.6.0-resource-exhaustion-via-csv-migration
  - url: 'https://github.com/advisories/GHSA-55p4-8j34-jv53'
tags:
  - ghsa
  - go
ingestedAt: '2026-10-09T21:12:42.327Z'
---

## Overview

### Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-pqf9-h8g4-8gmh. This link is maintained to preserve external references.

### Original Description
vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the POST /api/v2/migration/csv/migrate endpoint that fails to limit parsed row cardinality. Authenticated attackers can upload multipart CSV files with millions of tiny records to exhaust process memory and terminate the API service.

## Affected packages

- `code.vikunja.io/api = 2.5.0`

## Remediation

Refer to the advisory for the patched release.