{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/products/mattermost--11.9.2/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Mattermost (\u003c= 11.10.0)","Mattermost (\u003c= 11.9.2)","Mattermost (\u003c= 11.8.6)","Mattermost (\u003c= 11.7.11)"],"_cs_severities":["medium"],"_cs_tags":["vulnerability-management","security-advisory"],"_cs_type":"advisory","_cs_vendors":["Mattermost"],"content_html":"\u003cp\u003eThe Canadian Centre for Cyber Security (CCCS) has issued an advisory regarding security vulnerabilities in Mattermost. The affected versions include releases up to and including 11.10.0, 11.9.2, 11.8.6, and 11.7.11. As of the time of publication, technical details regarding the specific nature of the vulnerabilities remain undisclosed in the CCCS advisory. Users and administrators are advised to monitor the official Mattermost Security Updates portal for patches.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eInventory all Mattermost server instances within the environment.\u003c/li\u003e\n\u003cli\u003eReview the Mattermost Security Updates documentation for specific vulnerability details and patch availability.\u003c/li\u003e\n\u003cli\u003eApply the latest security patches to all affected versions (11.10.0 and earlier) immediately upon release.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-10-29T15:52:30Z","date_published":"2026-10-29T15:52:30Z","id":"https://feed.craftedsignal.io/briefs/2026-10-mattermost-advisory/","summary":"Mattermost has released a security advisory addressing multiple vulnerabilities affecting versions up to 11.10.0 and earlier maintenance releases.","title":"Mattermost Security Updates (AV26-1104)","url":"https://feed.craftedsignal.io/briefs/2026-10-mattermost-advisory/"}],"language":"en","title":"CraftedSignal Threat Feed - Mattermost (\u003c= 11.9.2)","version":"https://jsonfeed.org/version/1.1"}