---
id: CVE-2026-95813
title: >-
  e621ng versions before 26.09.16 pass untrusted request parameters directly to
  Rails url_for in PaginatorComponent and controller navigation links, allowing
  attackers to redirect pagination and navigation controls to
  attacker-controlled o…
summary: >-
  e621ng versions before 26.09.16 pass untrusted request parameters directly to
  Rails url_for in PaginatorComponent and controller navigation links, allowing
  attackers to redirect pagination and navigation controls to
  attacker-controlled o…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-601
vendor: e621ng
product: e621ng
affected:
  - e621ng < 26.09.16
published: '2026-09-22'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T21:08:55.030'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-95813'
references:
  - url: 'https://github.com/e621ng/e621ng'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/e621ng/e621ng/blob/26.09.02/app/components/paginator_component.rb
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/e621ng/e621ng/commit/e1a3930bf1750b02a23843ec88c33e2aa06e2a5e
    label: disclosure@vulncheck.com
  - url: 'https://github.com/e621ng/e621ng/pull/2518'
    label: disclosure@vulncheck.com
  - url: 'https://github.com/e621ng/e621ng/releases/tag/26.09.16'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/e621ng-before-26.09.16-open-redirect-via-url-parameters
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
epss: 0.00336
epssPercentile: 0.24175
ingestedAt: '2026-09-22T21:11:40.326Z'
---

## Overview

e621ng versions before 26.09.16 pass untrusted request parameters directly to Rails url_for in PaginatorComponent and controller navigation links, allowing attackers to redirect pagination and navigation controls to attacker-controlled origins. Attackers can supply host, protocol, and port query parameters that are interpreted as URL generation options, causing pagination links to point to malicious domains while the initial page loads from the legitimate site.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.