{"id":78372,"date":"2026-05-13T03:46:16","date_gmt":"2026-05-13T00:16:16","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-8336-post-authentication-use-after-free-error-in-_internaljsemit-and-mapreduce-commands\/"},"modified":"2026-05-13T03:46:16","modified_gmt":"2026-05-13T00:16:16","slug":"cve-2026-8336-post-authentication-use-after-free-error-in-_internaljsemit-and-mapreduce-commands","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-8336-post-authentication-use-after-free-error-in-_internaljsemit-and-mapreduce-commands\/","title":{"rendered":"CVE-2026-8336 &#8211; Post-authentication use-after-free error in $_internalJsEmit and mapreduce commands"},"content":{"rendered":"<p>CVE ID :CVE-2026-8336<\/p>\n<p>  Published : May 13, 2026, 12:16 a.m. | 41\u00a0minutes ago<\/p>\n<p>  Description :After invoking $_internalJsEmit, which is not intended to be directly accessible, or mapreduce command\u2019s map function in a certain way, an authenticated user can subsequently crash mongod when the server-side JavaScript engine (through $where, $function, mapreduce reduce stage, etc.) is used also in a specific way, resulting in a post-authentication denial-of-service.<\/p>\n<p>This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.<\/p>\n<p>  Severity: 7.7 | HIGH<\/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-2026-8336 Published : May 13, 2026, 12:16 a.m. | 41\u00a0minutes ago Description :After invoking $_internalJsEmit, which is not intended to be directly accessible, or mapreduce command\u2019s map function in a certain way, an authenticated user can subsequently crash mongod when the server-side JavaScript engine (through $where, $function, mapreduce reduce stage, etc.) is used &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-78372","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78372","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=78372"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/78372\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=78372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=78372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=78372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}