CVE-2026-18540

undici's retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response while still presenting the original response's status and headers. This happens when an upstream server delivers part of a body without a trustworthy resume...

CVE-2026-18540

CVE-2026-18540 affects undici (Node.js HTTP client library). The retry interceptor can append the body of a ranged retry response to bytes already delivered from an earlier partial response, presenting the original status and headers. This causes the response body to exceed the observed Content-L...