CVE-2026-114060

MEDIUM 4.7

SvelteKit before 3.0.0 Open Redirect via Enhanced Form Actions

CVSS Score

4.7

EPSS Score

0.0%

EPSS Percentile

0th

SvelteKit (@sveltejs/kit) before 3.0.0 contains an open redirect vulnerability in enhanced form actions (use:enhance) on routes accepting paths beginning with a double slash. Attackers can craft action paths starting with // that become protocol-relative URLs, causing non-redirect form results to navigate victims to attacker-controlled sites.

CWE	CWE-601
Vendor	sveltejs
Product	kit
Published	Oct 21, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Affected Versions

sveltejs / kit

0 < 3.0.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/sveltejs/kit/security/advisories/GHSA-pfhg-q3qv-9q6r vulncheck.com: https://www.vulncheck.com/advisories/sveltekit-before-3.0.0-open-redirect-via-enhanced-form-actions