---
title: "CVE-2026-109431: Camunda - Broken Access Control"
description: "Camunda 7.24.0 < 7.24.14 and 7.23.0 < 7.23.17 contain a broken access control caused by missing authorization checks in engine-rest task sub-resources, letting authenticated attackers access and delete task comments and attachments using known object IDs, exploit requires authentication without permission grants."
url: https://panop.io/threat-heartbeat/CVE-2026-109431/
---

# CVE-2026-109431 Camunda - Broken Access Control

Camunda 7.24.0 < 7.24.14 and 7.23.0 < 7.23.17 contain a broken access control caused by missing authorization checks in engine-rest task sub-resources, letting authenticated attackers access and delete task comments and attachments using known object IDs, exploit requires authentication without permission grants.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-109431)

## Details

Type

Broken Access Control

Impact

Broken Access Control, Information Disclosure, Data Tampering

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Published

19 October 2026

Updated

20 October 2026

Weakness

[CWE-639](https://cwe.mitre.org/data/definitions/639.html)

## Vendor fix

Upgrade to versions 7.24.14, 7.23.17 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-109431](https://nvd.nist.gov/vuln/detail/CVE-2026-109431)
- [https://codeant.ai/security-research/camunda-task-attachment-authorization-cve-2026-109431](https://codeant.ai/security-research/camunda-task-attachment-authorization-cve-2026-109431)
- [https://docs.camunda.org/enterprise/download/](https://docs.camunda.org/enterprise/download/)
- [https://www.vulncheck.com/advisories/camunda-missing-authorization-in-task-sub-resources](https://www.vulncheck.com/advisories/camunda-missing-authorization-in-task-sub-resources)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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