{"id":"CVE-2026-82061","title":"A use-after-free security issue exists in the server's query execution memory tracking subsystem","summary":"A use-after-free security issue exists in the server's query execution memory tracking subsystem. An authenticated user with read privileges can trigger a write to freed heap memory through a sequence of standard database commands, leadi…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","cwe":["CWE-416"],"vendor":"mongodb","product":"mongodb","affected":["mongodb >= 8.3.0, < 8.3.9"],"patched":["mongodb 8.3.9"],"published":"2026-09-08","updated":"2026-09-16","sourceUpdated":"2026-09-16T20:36:31.050","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82061","references":[{"url":"https://jira.mongodb.org/browse/SERVER-130907","label":"cna@mongodb.com"}],"tags":["nvd","cve.org"],"epss":0.00292,"epssPercentile":0.21983,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T17:57:21.654411Z"},"ingestedAt":"2026-09-08T16:34:19.257Z","slug":"CVE-2026-82061","body":"## Overview\n\nA use-after-free security issue exists in the server's query execution memory tracking subsystem. An authenticated user with read privileges can trigger a write to freed heap memory through a sequence of standard database commands, leading to server process crash or potential memory corruption. No user interaction is required.\n\n## Affected\n\n- `mongodb >= 8.3.0, < 8.3.9`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `mongodb 8.3.9`","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}