CVE-2026-27119

svelte performance oriented web framework. From 5.39.3, <=5.51.4, in certain circumstances, the server-side rendering output of an <option> element does not properly escape its content, potentially allowing HTML injection in the SSR output. Client-side rendering is not affected. This vulnerability is fixed in 5.51.5.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/sveltejs/svelte/security/advisories/GHSA-h7h7-mm68-gmrc	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:svelte:svelte:*:*:*:*:*:node.js:*:*

History

23 Feb 2026, 20:54

Type	Values Removed	Values Added
First Time		Svelte svelte Svelte
References	~~() https://github.com/sveltejs/svelte/security/advisories/GHSA-h7h7-mm68-gmrc -~~	() https://github.com/sveltejs/svelte/security/advisories/GHSA-h7h7-mm68-gmrc - Vendor Advisory
CPE		cpe:2.3:a:svelte:svelte::::::node.js::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4

20 Feb 2026, 23:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-20 23:16

Updated : 2026-02-23 20:54

NVD link : CVE-2026-27119

Mitre link : CVE-2026-27119

CVE.ORG link : CVE-2026-27119

JSON object : View

Products Affected

svelte

svelte

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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