{"id":"CVE-2026-84962","title":"An unauthorized user with key vault write access may cause an authorized client to issue arbitrary authenticated Google Cloud KMS API calls under the authorized user's identity, escalating database-level access into cloud key control and…","summary":"An unauthorized user with key vault write access may cause an authorized client to issue arbitrary authenticated Google Cloud KMS API calls under the authorized user's identity, escalating database-level access into cloud key control and…","severity":"medium","cvss":4.2,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:N/A:N","cwe":["CWE-93"],"vendor":"mongodb","product":"libmongocrypt","affected":["libmongocrypt < 1.20.2"],"patched":["libmongocrypt 1.20.2"],"published":"2026-09-03","updated":"2026-09-17","sourceUpdated":"2026-09-17T14:00:40.680","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-84962","references":[{"url":"https://jira.mongodb.org/browse/MONGOCRYPT-960","label":"cna@mongodb.com"}],"tags":["nvd"],"epss":0.00117,"epssPercentile":0.01903,"ingestedAt":"2026-09-17T14:19:30.939Z","slug":"CVE-2026-84962","body":"## Overview\n\nAn unauthorized user with key vault write access may cause an authorized client to issue arbitrary authenticated Google Cloud KMS API calls under the authorized user's identity, escalating database-level access into cloud key control and defeating client-side encryption.\n\n## Affected\n\n- `libmongocrypt < 1.20.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `libmongocrypt 1.20.2`","depth":"sunlit","depthScore":23,"depthScoreParts":{"impact":23.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}