{"id":"CVE-2026-44217","revision":"e09555bbb14f4a53bb24df1ceeac5af5","records":[{"revision":"e09555bbb14f4a53bb24df1ceeac5af5","observedAt":"2026-10-25T10:17:21.823+00:00","statement":{"source":"nvd","id":"CVE-2026-44217","aliases":[],"title":"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,…","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.","state":0,"publishedAt":"2026-05-12T20:16:42.513+00:00","modifiedAt":"2026-06-17T10:50:22.43+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":6.6,"severity":"MEDIUM"}],"references":["https://github.com/rexxars/sse-channel/issues/42","https://github.com/rexxars/sse-channel/security/advisories/GHSA-84hm-wfh8-c5pg"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-44217","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-93"],"productCriteria":[],"sourceDates":{"published":"2026-05-12T20:16:42.513","lastModified":"2026-06-17T10:50:22.430"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-44217","identifiers":["CVE-2026-44217"]},"retained":false,"historicalAffected":[]}],"coverage":[]}