CVE-2026-109431 PUBLISHED

Camunda Missing Authorization in Task Sub-Resources

Assigner: VulnCheck
Reserved: 12.10.2026 Published: 19.10.2026 Updated: 19.10.2026

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.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS Score: 8.6

Product Status

Vendor Camunda
Product Camunda 7
Versions Default: unaffected
  • affected from 7.24.0 to 7.24.14 (excl.)
  • affected from 7.23.0 to 7.23.17 (excl.)

Credits

  • CodeAnt AI Security Research Team finder

References

Problem Types

  • Missing Authorization CWE
  • Authorization Bypass Through User-Controlled Key CWE