Description

Svelte performance oriented web framework. Prior to version 5.53.5, errors from `transformError` were not correctly escaped prior to being embedded in the HTML output, causing potential HTML injection and XSS if attacker-controlled content is returned from `transformError`. Version 5.53.5 fixes the issue.

INFO

Published Date :

2026-02-26T00:58:54.604Z

Last Modified :

2026-02-26T18:51:39.142Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-27902 vulnerability.

Vendors Products
Svelte
  • Svelte
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-27902.

URL Resource
https://github.com/sveltejs/svelte/commit/0298e979371bb583855c9810db79a70a551d22b9 cve-icon cve-icon cve-icon
https://github.com/sveltejs/svelte/releases/tag/svelte%405.53.5 cve-icon cve-icon cve-icon
https://github.com/sveltejs/svelte/security/advisories/GHSA-qgvg-pr8v-6rr3 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-27902 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-27902 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact