{"id":"CVE-2019-19389","aliases":["EUVD-2019-9010","GHSA-rm67-h645-8jg2"],"status":"published","title":"Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) in Ktor","description":"JetBrains Ktor framework before version 1.2.6 was vulnerable to HTTP Response Splitting.","severity":{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0083,"percentile":0.57814,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-74"],"published":"2019-12-26T20:15:55Z","modified":"2026-10-20T10:50:51Z","products":[{"vendor":"jetbrains","product":"ktor"}],"references":[{"url":"https://github.com/ktorio/ktor/pull/1408","tags":["x_refsource_MISC","x_transferred","Mitigation","Patch","Third Party Advisory","fix"]},{"url":"https://gist.github.com/JLLeitschuh/6792947ed57d589b08c1cc8b666c7737","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://twitter.com/JLLeitschuh/status/1210256191110230017?s=20","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-19389"},{"url":"https://github.com/ktorio/ktor/pull/1408/files/b6fbd47a09292e07a0fb09a5268c881172285a12#diff-20d6913e40cb2ce736c98e4fae333379"},{"url":"https://blog.jetbrains.com"},{"url":"https://github.com/advisories/GHSA-rm67-h645-8jg2"}],"sources":{"cve":[{"id":"CVE-2019-19389","description":"JetBrains Ktor framework before version 1.2.6 was vulnerable to HTTP Response Splitting.","status":"published","published":"2019-12-26T20:15:55Z","modified":"2024-08-05T02:16:47.067Z","updated_at":"2026-11-02T14:20:20.74896Z"}],"euvd":[{"id":"EUVD-2019-9010","description":"JetBrains Ktor framework before version 1.2.6 was vulnerable to HTTP Response Splitting.","status":"published","published":"2019-12-26T20:15:55Z","modified":"2024-08-05T02:16:47Z","updated_at":"2026-11-03T02:40:25.391321Z"}],"ghsa":[{"id":"GHSA-rm67-h645-8jg2","title":"Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) in Ktor","description":"JetBrains Ktor framework before version 1.2.6 was vulnerable to HTTP Response Splitting.","status":"published","published":"2022-05-24T22:01:17Z","modified":"2023-01-30T05:04:59Z","updated_at":"2026-11-02T14:47:10.094761Z"}],"nvd":[{"id":"CVE-2019-19389","description":"JetBrains Ktor framework before version 1.2.6 was vulnerable to HTTP Response Splitting.","status":"published","published":"2019-12-26T21:15:11.54Z","modified":"2026-06-17T02:26:36.823Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-74"],"updated_at":"2026-11-02T14:05:41.313583Z"}],"osv":[{"id":"CVE-2019-19389","description":"JetBrains Ktor framework before version 1.2.6 was vulnerable to HTTP Response Splitting.","status":"published","published":"2019-12-26T21:15:11.54Z","modified":"2026-10-20T10:50:51.509352966Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:12.010761Z"}]}}