{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/mongodb-7.0.0/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":8.8,"id":"CVE-2026-8053"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["MongoDB 8.3.0","MongoDB 8.3.1","MongoDB 8.2.0","MongoDB 8.2.8","MongoDB 8.0.0","MongoDB 8.0.22","MongoDB 7.0.0","MongoDB 7.0.33","MongoDB 6.0.0","MongoDB 6.0.27","MongoDB 5.0.0","MongoDB 5.0.32"],"_cs_severities":["medium"],"_cs_tags":["mongodb","cve-2026-8053","timeseries","denial of service"],"_cs_type":"advisory","_cs_vendors":["MongoDB"],"content_html":"\u003cp\u003eOn May 12, 2026, MongoDB released a security advisory addressing CVE-2026-8053. This vulnerability impacts MongoDB versions 5.0.0 to 5.0.32, 6.0.0 to 6.0.27, 7.0.0 to 7.0.33, 8.0.0 to 8.0.22, 8.2.0 to 8.2.8, and 8.3.0 to 8.3.1. The vulnerability stems from undefined behavior when handling data insertion with duplicate field names into timeseries collections. Successful exploitation could lead to denial of service or unexpected data corruption. Defenders should apply the necessary updates as soon as possible.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker crafts a malicious document containing duplicate field names specifically designed to trigger the vulnerability in timeseries collections.\u003c/li\u003e\n\u003cli\u003eThe attacker connects to the MongoDB server.\u003c/li\u003e\n\u003cli\u003eThe attacker authenticates (or exploits an authentication bypass vulnerability, if present).\u003c/li\u003e\n\u003cli\u003eThe attacker targets a specific timeseries collection within the database.\u003c/li\u003e\n\u003cli\u003eThe attacker executes an \u003ccode\u003einsert\u003c/code\u003e operation with the crafted malicious document.\u003c/li\u003e\n\u003cli\u003eThe MongoDB server attempts to process the insertion, triggering the undefined behavior due to the duplicate field names.\u003c/li\u003e\n\u003cli\u003eThis undefined behavior can manifest as a denial of service, causing the MongoDB server to crash or become unresponsive.\u003c/li\u003e\n\u003cli\u003eAlternatively, the vulnerability can lead to data corruption within the timeseries collection, compromising data integrity.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-8053 can lead to a denial-of-service condition, disrupting database availability. Data corruption within timeseries collections could also occur, leading to loss of data integrity and potentially impacting applications that rely on accurate data from these collections. The number of affected MongoDB instances is currently unknown, but any instance running a vulnerable version and utilizing timeseries collections is susceptible.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade MongoDB instances to a patched version outside the ranges specified (8.3.0 to 8.3.1, 8.2.0 to 8.2.8, 8.0.0 to 8.0.22, 7.0.0 to 7.0.33, 6.0.0 to 6.0.27, and 5.0.0 to 5.0.32) to remediate CVE-2026-8053, as recommended in the advisory.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule to detect potentially malicious database insertions targeting timeseries collections.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-14T15:49:13Z","date_published":"2026-05-14T15:49:13Z","id":"https://feed.craftedsignal.io/briefs/2026-05-mongodb-timeseries-vuln/","summary":"MongoDB published a security advisory to address CVE-2026-8053, an undefined behavior vulnerability when inserting data with duplicate field names into timeseries collections, affecting versions 5.0.0 through 8.3.1.","title":"MongoDB Timeseries Collection Vulnerability (CVE-2026-8053)","url":"https://feed.craftedsignal.io/briefs/2026-05-mongodb-timeseries-vuln/"}],"language":"en","title":"CraftedSignal Threat Feed — MongoDB 7.0.0","version":"https://jsonfeed.org/version/1.1"}