{"id":"CVE-2026-82057","title":"A security issue was discovered in MongoDB where an authenticated user with readWrite privileges could crash the mongod server process","summary":"A security issue was discovered in MongoDB where an authenticated user with readWrite privileges could crash the mongod server process. By specifying a custom WiredTiger storage configuration option with an incompatible value during coll…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-843"],"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":"2026-09-16T20:33:52.627","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82057","references":[{"url":"https://jira.mongodb.org/browse/SERVER-130495","label":"cna@mongodb.com"}],"tags":["nvd","cve.org"],"epss":0.0042,"epssPercentile":0.33591,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-08T18:00:30.816044Z"},"ingestedAt":"2026-09-08T16:34:19.257Z","slug":"CVE-2026-82057","body":"## Overview\n\nA security issue was discovered in MongoDB where an authenticated user with readWrite privileges could crash the mongod server process. By specifying a custom WiredTiger storage configuration option with an incompatible value during collection creation, a user could cause a type confusion in the storage engine layer. When documents were subsequently read from the misconfigured collection, the resulting mismatch in expected data format led to corrupted memory interpretation and a server crash. The crafted collection configuration persists across restarts, requiring manual operator intervention to remediate.\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":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}