{"id":"CVE-2026-82061","summary":"Use-After-Free in MongoDB Server Query Execution Memory Tracking Subsystem Leads to Denial of Service","details":"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, leading to server process crash or potential memory corruption. No user interaction is required.","aliases":["BIT-mongodb-2026-82061"],"modified":"2026-09-18T03:48:30.713048282Z","published":"2026-09-08T16:12:22.411Z","database_specific":{"cwe_ids":["CWE-416"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82061.json","unresolved_ranges":[{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"8.3.0"},{"fixed":"8.3.9"}]}],"cna_assigner":"mongodb"},"references":[{"type":"WEB","url":"https://jira.mongodb.org/browse/SERVER-130907"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82061.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82061"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mongodb/mongo","events":[{"introduced":"0f29b043a58fdd251ce0a0b32754b8459613c933"},{"fixed":"1dc3d60c3237b53589325474c668e849ecec3bae"}],"database_specific":{"extracted_events":[{"introduced":"8.3.0"},{"fixed":"8.3.9"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*"}}],"versions":["r8.3.3","r8.3.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82061.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"}]}