CVE
CVE-2026-40074
@sveltejs/kit: Unvalidated redirect in handle hook causes Denial-of-Service
redirect, when called from inside the handle server hook with a location parameter containing characters that are invalid in a HTTP header, will cause an unhandled TypeError. This could result in DoS on some platforms, especially if the location passed to redirect contains unsanitized user input.
Package Versions Affected
Package Version
patch Availability
No items found.
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CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
6.3
-
4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
7.5
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Related Resources
No items found.
References
https://github.com/sveltejs/kit/security/advisories/GHSA-3f6h-2hrp-w5wx, https://nvd.nist.gov/vuln/detail/CVE-2026-40074, https://github.com/sveltejs/kit/commit/10d7b44425c3d9da642eecce373d0c6ef83b4fcd, https://github.com/sveltejs/kit, https://github.com/sveltejs/kit/releases/tag/%40sveltejs%2Fkit%402.57.1, https://github.com/sveltejs/kit/releases/tag/@sveltejs/kit@2.57.1
Basic Information
Ecosystem
