{"schemaVersion":3,"id":"CVE-2026-13772","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"IBM WebSphere Extreme Scale 8.6.1.0 through 8.6.1.6 's Object Query Language engine resolves attacker-supplied class names via Class.forName() and invokes their constructors with no allow-list at three distinct sinks (SELECT NEW, enum literals, and reflection-based comparators); an authenticated remote attacker who can influence an application-built OQL query string can execute arbitrary constructors on the WAS JVM, and a SELECT DISTINCT variant using planted grid values fires the same gadget post-readObject in a manner that survives JEP-290 serialization filters across grid node boundaries","dates":{"published":"2026-06-30T19:21:43.212Z","modified":"2026-07-03T03:56:12.467Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.9,"severity":"critical","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:H/PR:L/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":9.9,"severity":"critical","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.0051,"percentile":0.42326,"severity":"low","asOf":"2026-10-20T00:00:00.000Z","change":{"pp":0,"baselineDate":"2026-09-20T00:00:00.000Z","baselineScore":0.0051},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0051,"percentile":0.42326}],"last30":[{"date":"2026-09-20T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.0051,"percentile":null},{"date":"2026-10-20T00:00:00.000Z","score":0.0051,"percentile":0.42326}]},"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-470","name":"Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')","description":"The product uses external input with reflection to select which classes or code to use, but it does not sufficiently prevent the input from selecting improper classes or code.","type":"weakness","status":"Draft","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/470.html"}],"affected":[{"vendor":"ibm","product":"websphere_extreme_scale","name":"websphere extreme scale","label":"websphere_extreme_scale","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 8.6.1.0, ≤ 8.6.1.6","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 8.6.1.0, ≤ 8.6.1.6","eol":null,"hubHref":"/vendor/ibm/websphere_extreme_scale"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://www.ibm.com/support/pages/node/7278593","label":"www.ibm.com/support/pages/node/7278593","hostname":"www.ibm.com","tags":["Vendor Advisory","Patch"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-06-30T19:21:43.212Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-03T03:56:12.467Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T05:22:50.212Z","stale":false,"partial":false}}