Vulnerability Details CVE-2026-42567
Svelte is a performance oriented web framework. From version 5.51.5 to before version 5.55.7, an internal regex in the Svelte runtime can take exponential time to test in <svelte:element this={tag}></svelte:element>. This issue has been patched in version 5.55.7.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.9%
CVSS Severity