{"id":77397,"date":"2026-02-18T21:54:26","date_gmt":"2026-02-18T18:24:26","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-20139-client-side-denial-of-service-dos-through-splunkd-__raw-services-authentication-users-username-rest-api-endpoint-in-splunk-enterprise\/"},"modified":"2026-02-18T21:54:26","modified_gmt":"2026-02-18T18:24:26","slug":"cve-2026-20139-client-side-denial-of-service-dos-through-splunkd-__raw-services-authentication-users-username-rest-api-endpoint-in-splunk-enterprise","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-20139-client-side-denial-of-service-dos-through-splunkd-__raw-services-authentication-users-username-rest-api-endpoint-in-splunk-enterprise\/","title":{"rendered":"CVE-2026-20139 &#8211; Client-Side Denial of Service (DoS) through &#8221;\/splunkd\/__raw\/services\/authentication\/users\/username&#8221; REST API endpoint in Splunk Enterprise"},"content":{"rendered":"<p>CVE ID : CVE-2026-20139<\/p>\n<p>Published :  Feb. 18, 2026, 6:24 p.m. | 35\u00a0minutes ago<\/p>\n<p>Description : In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.8, 9.3.9, and 9.2.12, and Splunk Cloud Platform versions below 10.2.2510.3, 10.1.2507.8, 10.0.2503.9, and 9.3.2411.121, a low-privileged user that does not hold the &#8220;admin&#8221; or &#8220;power&#8221; Splunk roles could craft a malicious payload into the `realname`, `tz`, or `email` parameters of the `\/splunkd\/__raw\/services\/authentication\/users\/username` REST API endpoint when they change a password. This could potentially lead to a client\u2011side denial\u2011of\u2011service (DoS). The malicious payload might significantly slow page load times or render Splunk Web temporarily unresponsive.<\/p>\n<p>Severity: 4.3 | MEDIUM<\/p>\n<p>Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2026-20139 Published : Feb. 18, 2026, 6:24 p.m. | 35\u00a0minutes ago Description : In Splunk Enterprise versions below 10.2.0, 10.0.2, 9.4.8, 9.3.9, and 9.2.12, and Splunk Cloud Platform versions below 10.2.2510.3, 10.1.2507.8, 10.0.2503.9, and 9.3.2411.121, a low-privileged user that does not hold the &#8220;admin&#8221; or &#8220;power&#8221; Splunk roles could craft a malicious &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-77397","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77397","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=77397"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77397\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}