CVE-2026-44214: rexxars eventsource-encoder, инжекция

Описание

Оригинално описание

eventsource-encoder encodes events as well-formed EventSource/Server Sent Event (SSE) messages. Prior to 1.0.2, eventsource-encoder does not sanitize the event or id fields of an EventSourceMessage before serializing them. An attacker who controls either field can inject arbitrary Server-Sent Events line terminators (\n, \r, or \r\n) and thereby forge additional SSE fields or entire messages on the stream. This vulnerability is fixed in 1.0.2.

Засегнати продукти

• rexxars eventsource-encoder: < 1.0.2

Вид слабост

• CWE-93 Неправилно неутрализиране на CRLF последователности
• CWE-113 Неправилно неутрализиране на CRLF в HTTP заглавки

История

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-44214
• https://nvd.nist.gov/vuln/detail/CVE-2026-44214
• https://github.com/rexxars/eventsource-encoder/security/advisories/GHSA-m9g3-3g99-mhpx