CVE-2026-109431

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 comments.

References

https://www.vulncheck.com/advisories/camunda-missing-authorization-in-task-sub-resources

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-104391

https://docs.camunda.org/enterprise/download/

https://codeant.ai/security-research/camunda-task-attachment-authorization-cve-2026-109431

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4

EPSS