{"schemaVersion":3,"id":"CVE-2026-6366","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Improperly Controlled Modification of Dynamically-Determined Object Attributes vulnerability in Drupal Drupal core allows Object Injection.\n\nThis issue affects Drupal core: from 8.0.0 before 10.5.9, from 10.6.0 before 10.6.7, from 11.0.0 before 11.2.11, from 11.3.0 before 11.3.7.","dates":{"published":"2026-05-19T22:27:46.454Z","modified":"2026-05-21T03:55:14.895Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":6.6,"severity":"medium","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":6.6,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":6.6,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00417,"percentile":0.34644,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0.018000000000000047,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.00399},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00417,"percentile":0.34644}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00399,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00417,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.00417,"percentile":0.34644}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-915","name":"Improperly Controlled Modification of Dynamically-Determined Object Attributes","description":"The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/915.html"}],"affected":[{"vendor":"drupal","product":"drupal","name":"drupal","label":"drupal","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.0.0, < 10.5.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.6.0, < 10.6.7","noFixRecorded":false,"fixedIn":null},{"text":"≥ 11.0.0, < 11.2.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 11.3.0, < 11.3.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.0.0, < 10.5.9 | ≥ 10.6.0, < 10.6.7 | ≥ 11.0.0, < 11.2.11 | ≥ 11.3.0, < 11.3.7","eol":{"isEol":null,"eolDate":null,"matchMethod":"cpe","cycle":null,"product":{"name":"drupal","label":"Drupal","category":"server-app"}},"hubHref":"/vendor/drupal/drupal"},{"vendor":"drupal","product":"drupal core","name":"Drupal core","label":"drupal core","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.0.0, < 10.5.9","noFixRecorded":false,"fixedIn":null},{"text":"≥ 10.6.0, < 10.6.7","noFixRecorded":false,"fixedIn":null},{"text":"≥ 11.0.0, < 11.2.11","noFixRecorded":false,"fixedIn":null},{"text":"≥ 11.3.0, < 11.3.7","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.0.0, < 10.5.9 | ≥ 10.6.0, < 10.6.7 | ≥ 11.0.0, < 11.2.11 | ≥ 11.3.0, < 11.3.7","eol":null,"hubHref":"/vendor/drupal/drupal_core"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.drupal.org/sa-core-2026-002","label":"www.drupal.org/sa-core-2026-002","hostname":"www.drupal.org","tags":["Vendor Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-05-19T22:27:46.454Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-05-21T03:55:14.895Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":26,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T02:57:06.297Z","stale":false,"partial":false}}