CVE-2026-114062
Published:October 21, 2026
Updated:October 21, 2026
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 Packages
https://github.com/sveltejs/kit.git (GITHUB):
Affected version(s) >=@sveltejs/kit@3.0.0-next.0 <@sveltejs/kit@3.0.0Fix Suggestion:
Update to version @sveltejs/kit@3.0.0@sveltejs/kit (NPM):
Affected version(s) >=3.0.0-next.0 <3.0.0Fix Suggestion:
Update to version 3.0.0Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Server-Side Request Forgery (SSRF)