{"schemaVersion":3,"id":"CVE-2026-23526","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"CVAT is an open source interactive video and image annotation tool for computer vision. In versions 1.0.0 through 2.54.0, users that have the staff status may freely change their permissions, including giving themselves superuser status and joining the admin group, which gives them full access to the data in the CVAT instance. Version 2.55.0 fixes the issue. As a workaround, review the list of users with staff status and revoke it from any users that are not expected to have superuser privileges.","dates":{"published":"2026-01-21T21:40:25.214Z","modified":"2026-02-26T14:44:33.583Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":8.8,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"NVD","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":8.5,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":8.5,"severity":"high","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":8.8,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00296,"percentile":0.20966,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.006000000000000016,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.0029},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00265,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00265,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00265,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00265,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00296,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00296,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00296,"percentile":0.20966}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.0029,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00296,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00296,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00296,"percentile":0.20966}]},"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-267","name":"Privilege Defined With Unsafe Actions","description":"A particular privilege, role, capability, or right can be used to perform unsafe actions that were not intended, even when it is assigned to the correct entity.","type":"weakness","status":"Incomplete","abstraction":"Base","likelihoodOfExploit":null,"url":"https://cwe.mitre.org/data/definitions/267.html"}],"affected":[{"vendor":"cvat-ai","product":"cvat","name":"cvat","label":"cvat","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.0.0, < 2.55.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.0.0, < 2.55.0","eol":null,"hubHref":"/vendor/cvat-ai/cvat"},{"vendor":"cvat","product":"computer_vision_annotation_tool","name":"computer vision annotation tool","label":"computer_vision_annotation_tool","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 1.0.0, < 2.55.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 1.0.0, < 2.55.0","eol":null,"hubHref":"/vendor/cvat/computer_vision_annotation_tool"}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/cvat-ai/cvat/security/advisories/GHSA-7pvv-w55f-qmw7","label":"github.com/cvat-ai/cvat/security/advisories/GHSA-7pvv-w55f-qmw7","hostname":"github.com","tags":["X Refsource CONFIRM","Mitigation","Vendor Advisory"]},{"url":"https://github.com/cvat-ai/cvat/commit/88ac7aa4d5b52271a30f1aa387c0f5745f8f77d4","label":"github.com/cvat-ai/cvat/commit/88ac7aa4d5b52271a30f1aa387c0f5745f8f77d4","hostname":"github.com","tags":["X Refsource MISC","Patch"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-01-21T21:40:25.214Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-02-26T14:44:33.583Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":35,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T06:52:16.977Z","stale":false,"partial":false}}