CVE-2026-44217 — sse-channel: SSE Injection via unsanitized event fields
sse-channel is an SSE-implementation which can be used to any node.js http request/response stream. Prior to 4.0.1, implementations that allow user-provided values to be passed …
Published: 2026-05-12 · CVSS: 6.6 · CVSS 4.0
sse-channel is an SSE-implementation which can be used to any node.js http request/response stream. Prior to 4.0.1, implementations that allow user-provided values to be passed to event, retry or id fields are susceptible to event spoofing, where an attacker could inject arbitrary messages into the stream. This vulnerability is fixed in 4.0.1.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7