{"schemaVersion":3,"id":"CVE-2026-109431","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Camunda 7.24.0 before 7.24.14 and 7.23.0 before 7.23.17 contains a missing authorization check vulnerability in engine-rest task sub-resources that allows authenticated attackers with no permission grants to access task comments and attachments by calling singular read and delete endpoints that lack the authorization-filtered checks enforced on their corresponding list endpoints. Attackers can exploit TaskAttachmentResourceImpl and TaskCommentResourceImpl methods such as getAttachment, getAttachmentData, deleteAttachment, and getComment using only a known object ID to read, download, or permanently delete task attachments and 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action.","type":"weakness","status":"Incomplete","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/862.html"}],"affected":[{"vendor":"camunda","product":"camunda 7","name":"Camunda 7","label":"camunda 7","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 7.24.0, < 7.24.14","noFixRecorded":false,"fixedIn":null},{"text":"≥ 7.23.0, < 7.23.17","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 7.24.0, < 7.24.14 | ≥ 7.23.0, < 7.23.17","eol":null,"hubHref":"/vendor/camunda/camunda_7"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://codeant.ai/security-research/camunda-task-attachment-authorization-cve-2026-109431","label":"codeant.ai/security-research/camunda-task-attachment-authorization-cve-2026-109431","hostname":"codeant.ai","tags":["Technical Description","Exploit"]},{"url":"https://docs.camunda.org/enterprise/download/","label":"docs.camunda.org/enterprise/download/","hostname":"docs.camunda.org","tags":["Product","Patch"]},{"url":"https://www.vulncheck.com/advisories/camunda-missing-authorization-in-task-sub-resources","label":"www.vulncheck.com/advisories/camunda-missing-authorization-in-task-sub-resources","hostname":"www.vulncheck.com","tags":["Third Party Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-19T15:06:00.780Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-19T17:41:49.520Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":44,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T01:54:41.616Z","stale":false,"partial":false}}