{"id":"CVE-2026-82063","title":"A use-after-free security issue in the cursor management component of MongoDB Server allows an authenticated user to cause a denial of service","summary":"A use-after-free security issue in the cursor management component of MongoDB Server allows an authenticated user to cause a denial of service. Under specific timing conditions during cursor operations, a stale pointer to a freed resourc…","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-416"],"vendor":"mongodb","product":"mongodb","affected":["mongodb >= 7.0.0, < 7.0.41","mongodb >= 8.0.0, < 8.0.30","mongodb >= 8.3.0, < 8.3.9"],"patched":["mongodb 8.3.9"],"published":"2026-09-08","updated":"2026-09-16","sourceUpdated":"2026-09-16T20:37:09.547","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82063","references":[{"url":"https://jira.mongodb.org/browse/SERVER-131870","label":"cna@mongodb.com"}],"tags":["nvd","cve.org"],"epss":0.00258,"epssPercentile":0.17831,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T17:58:15.234399Z"},"ingestedAt":"2026-09-08T16:34:19.257Z","slug":"CVE-2026-82063","body":"## Overview\n\nA use-after-free security issue in the cursor management component of MongoDB Server allows an authenticated user to cause a denial of service. Under specific timing conditions during cursor operations, a stale pointer to a freed resource may be retained and subsequently dereferenced during cursor cleanup, leading to a server process crash.\n\n## Affected\n\n- `mongodb >= 7.0.0, < 7.0.41`\n- `mongodb >= 8.0.0, < 8.0.30`\n- `mongodb >= 8.3.0, < 8.3.9`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `mongodb 8.3.9`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}