{"id":"CVE-2021-34801","aliases":["EUVD-2021-1366","GHSA-p2c4-gxp4-j3xp"],"status":"published","title":"Denial of service in Valine","description":"Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01721,"percentile":0.7765,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-94"],"published":"2021-06-16T14:12:05Z","modified":"2026-10-20T10:53:48Z","affected":[{"source":"ghsa","ecosystem":"npm","package":"valine","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"1.4.14"}]}]},{"source":"osv","ecosystem":"npm","package":"valine","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"1.4.14"}]}]}],"products":[{"vendor":"valine.js","product":"valine"}],"references":[{"url":"https://github.com/xCss/Valine/issues/366","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Third Party Advisory","report","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-34801","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-p2c4-gxp4-j3xp"},{"url":"https://github.com/xCss/Valine","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-34801","description":"Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.","status":"published","published":"2021-06-16T14:12:05Z","modified":"2024-08-04T00:26:54.022Z","updated_at":"2026-11-02T14:33:11.244759Z"}],"euvd":[{"id":"EUVD-2021-1366","description":"Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.","status":"published","published":"2021-06-16T14:12:05Z","modified":"2024-08-04T00:26:54Z","updated_at":"2026-11-03T03:24:31.977228Z"}],"ghsa":[{"id":"GHSA-p2c4-gxp4-j3xp","title":"Denial of service in Valine","description":"Valine is a fast, simple \u0026 powerful comment system. Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.","status":"published","published":"2021-06-21T17:11:25Z","modified":"2023-02-01T05:05:58Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T14:36:36.66596Z"}],"nvd":[{"id":"CVE-2021-34801","description":"Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.","status":"published","published":"2021-06-16T15:15:08.533Z","modified":"2026-06-17T03:56:35.887Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:54.892562Z"}],"osv":[{"id":"CVE-2021-34801","description":"Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.","status":"published","published":"2021-06-16T15:15:08.533Z","modified":"2026-10-20T10:53:48.803952544Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"updated_at":"2026-11-02T15:44:20.13324Z"},{"id":"GHSA-p2c4-gxp4-j3xp","title":"Denial of service in Valine","description":"Valine is a fast, simple \u0026 powerful comment system. Valine 1.4.14 allows remote attackers to cause a denial of service (application outage) by supplying a ua (aka User-Agent) value that only specifies the product and version.","status":"published","published":"2021-06-21T17:11:25Z","modified":"2023-11-08T04:06:08.731468Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-94"],"updated_at":"2026-11-02T15:46:52.534897Z"}]}}