{"id":"CVE-2026-109431","title":"Camunda Missing Authorization in Task Sub-Resources","summary":"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 atta…","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","cvssSource":"cna","cwe":["CWE-862","CWE-639"],"vendor":"Camunda","product":"Camunda 7","affected":["7 >= 7.24.0 < 7.24.14","7 >= 7.23.0 < 7.23.17"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-10-19T17:41:31.091455Z"},"exploitAvailable":true,"published":"2026-10-19","updated":"2026-10-19","sourceUpdated":"2026-10-19T17:41:49.520Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109431","references":[{"url":"https://codeant.ai/security-research/camunda-task-attachment-authorization-cve-2026-109431","label":"CodeAnt AI Blog"},{"url":"https://docs.camunda.org/enterprise/download/","label":"Camunda Download Page"},{"url":"https://www.vulncheck.com/advisories/camunda-missing-authorization-in-task-sub-resources","label":"VulnCheck Advisory: Camunda Missing Authorization in Task Sub-Resources"}],"tags":["cve.org","exploit-available"],"ingestedAt":"2026-10-19T15:31:18.958Z","slug":"CVE-2026-109431","body":"## Overview\n\nCamunda 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 comments.\n\n## Affected\n\n- `7 >= 7.24.0 < 7.24.14`\n- `7 >= 7.23.0 < 7.23.17`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":57,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":225106,"id":"CVE-2026-109431","ts":1792435063856,"field":"exploit_available","old":"false","new":"true"}]}