CVE-2026-40074General(svelte / kit)

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, 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. This vulnerability is fixed in 2.57.1.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-755

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • kit

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 2 signals
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-10); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Vendors
Products
kit

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-10: 1Mentions · 2026-04-28: 1Technical Details · 2026-04-10: 1Technical Details · 2026-04-28: 104-1004-28
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-101
General1
2026-04-281
Disclosure1
Full discourse2 posts
  • CVE@CVEnew
    General

    CVE-2026-40074 SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.57.1, redirect, when called from inside the handle server… https://www.cve.org/CVERecord?id=CVE-2026-40074

    Post summary

    The text references CVE-2026-40074 and links to its record, providing minimal technical context but no details on PoC, exploits, active use, or patches.

    00010166
    57.0K followersView on X
  • cvereports@_cvereports
    Disclosure

    CVE-2026-40074: CVE-2026-40074: Denial of Service via Unhandled Exceptions in SvelteKit Redirects SvelteKit versions prior to 2.57.1 are vulnerable to a Denial of Service (DoS) condition due to improper handling of exceptional conditions in the `redir... https://cvereports.com/reports/CVE-2026-40074

    Post summary

    A DoS vulnerability in SvelteKit is disclosed, affecting pre‑2.57.1 versions due to unhandled redirect exceptions; no PoC, exploit, or active usage is reported, and no patch is referenced.

    0000053
    36 followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appsveltekit-node.js-

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