CVE-2026-27119

State: PUBLISHED · Published: 2026-02-20 · Updated: 2026-02-23 · Assigner: GitHub_M

Description

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.

CWE

CWE-79 — CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected

sveltejs / svelte — v=>= 5.39.3, < 5.51.5 [affected]

CVSS

4.0 score=5.1 severity=MEDIUM CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:H/SI:H/SA:N

References

https://github.com/sveltejs/svelte/security/advisories/GHSA-h7h7-mm68-gmrc x_refsource_CONFIRM

Source

cvelistV5-main/cves/2026/27xxx/CVE-2026-27119.json