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NVD Vulnerability Details :
CVE-2026-22803
Analyzed
More InfoOfficial Page
Source-security-advisories@github.com
View Known Exploited Vulnerability (KEV) details
Published At-15 Jan, 2026 | 19:16
Updated At-21 Jan, 2026 | 20:34

SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. From 2.49.0 to 2.49.4, the experimental form remote function uses a binary data format containing a representation of submitted form data. A specially-crafted payload can cause the server to allocate a large amount of memory, causing DoS via memory exhaustion. This vulnerability is fixed in 2.49.5.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.08.2HIGH
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Type: Secondary
Version: 4.0
Base score: 8.2
Base severity: HIGH
Vector:
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CPE Matches
svelte
svelte
>>kit>>Versions from 2.49.0(inclusive) to 2.49.5(exclusive)
cpe:2.3:a:svelte:kit:*:*:*:*:*:node.js:*:*
Weaknesses
CWE IDTypeSource
CWE-789Primarysecurity-advisories@github.com
CWE-770Primarynvd@nist.gov
CWE ID: CWE-789
Type: Primary
Source: security-advisories@github.com
CWE ID: CWE-770
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/sveltejs/kit/commit/8ed8155215b9a74012fecffb942ad9a793b274e5security-advisories@github.com
Patch
https://github.com/sveltejs/kit/releases/tag/@sveltejs%2Fadapter-node@5.5.1security-advisories@github.com
Release Notes
https://github.com/sveltejs/kit/security/advisories/GHSA-j2f3-wq62-6q46security-advisories@github.com
Vendor Advisory
Hyperlink: https://github.com/sveltejs/kit/commit/8ed8155215b9a74012fecffb942ad9a793b274e5
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/sveltejs/kit/releases/tag/@sveltejs%2Fadapter-node@5.5.1
Source: security-advisories@github.com
Resource:
Release Notes
Hyperlink: https://github.com/sveltejs/kit/security/advisories/GHSA-j2f3-wq62-6q46
Source: security-advisories@github.com
Resource:
Vendor Advisory
Change History
0Changes found
Details not found