---
id: CVE-2026-114062
title: SvelteKit before 3.0.0 SSRF via Redirects in Server-Side Self-Fetch Fallbacks
summary: >-
  SvelteKit before 3.0.0 contains a server-side request forgery vulnerability
  that allows remote attackers to reach internal services because self-fetch
  fallbacks follow HTTP redirects automatically. Attackers can manipulate the
  Host or fo…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cvssSource: cna
cwe:
  - CWE-918
vendor: sveltejs
product: kit
affected:
  - kit < 3.0.0
published: '2026-10-21'
updated: '2026-10-21'
sourceUpdated: '2026-10-21T00:36:36.158Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-114062'
references:
  - url: 'https://github.com/sveltejs/kit/security/advisories/GHSA-prjg-x2qj-wj3g'
    label: GitHub Security Advisory (GHSA-prjg-x2qj-wj3g)
  - url: >-
      https://www.vulncheck.com/advisories/sveltekit-before-3.0.0-ssrf-via-redirects-in-server-side-self-fetch-fallbacks
    label: >-
      VulnCheck Advisory: SvelteKit before 3.0.0 SSRF via Redirects in
      Server-Side Self-Fetch Fallbacks
tags:
  - cve.org
ingestedAt: '2026-10-21T01:37:08.039Z'
---

## Overview

SvelteKit before 3.0.0 contains a server-side request forgery vulnerability that allows remote attackers to reach internal services because self-fetch fallbacks follow HTTP redirects automatically. Attackers can manipulate the Host or forwarded headers to point fallback requests at their server, which redirects them to internal services.

## Affected

- `kit < 3.0.0`

## Remediation

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