CVE-2026-27119

EUVD-2026-7510
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
sveltesvelte
5.39.3 ≤
𝑥
< 5.51.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/sveltejs/svelte/security/advisories/GHSA-h7h7-mm68-gmrc