Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://github.com/rexxars/sse-channel/issues/42
- https://github.com/rexxars/sse-channel/security/advisories/GHSA-84hm-wfh8-c5pg
FAQ
What is CVE-2026-44217?
CVE-2026-44217 is a documented vulnerability. 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 f...
How severe is CVE-2026-44217?
CVSS scoring is not yet available for CVE-2026-44217. Check NVD for updates.
Is there a patch for CVE-2026-44217?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.