MEDIUMnpm

SvelteKit: ReDoS (O(n^2)) in content negotiation — unauthenticated DoS via the Accept header

SvelteKit: ReDoS (O(n^2)) in content negotiation — unauthenticated DoS via the Accept header

CVE-2026-66062Published 2 weeks agoUpdated 2 weeks agoSource: OSV

Affected packages

  • @sveltejs/kit

Exploit signal

Known exploited (CISA KEV)
No
EPSS score
EPSS percentile

EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.

SvelteKit: ReDoS (O(n^2)) in content negotiation — unauthenticated DoS via the Accept header | HackTribune