Incorrect authorization in Camunda 7 setup lets attackers add admins
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
Camunda 7 from 7.24.0 before 7.24.15 contains an incorrect authorization flaw in the Admin web application's first-run setup endpoint, SetupResource (CWE-863). The setup check counts only direct members of the camunda-admin group, so it ignores other configured administrators. An unauthenticated remote attacker can create a new administrator account when that group is empty, leading to account takeover and possible process deployment or script execution as the engine's service user. An exploit is linked in the references.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Camunda 7.24.0 before 7.24.15 contains an incorrect authorization vulnerability in the Admin web application's first-run setup endpoint, where SetupResource incorrectly determines setup availability by counting only direct members of the camunda-admin group rather than recognizing all configured administrators. An unauthenticated remote attacker can exploit this logic flaw to call the setup user-create endpoint and create a new administrator account when the camunda-admin group is empty but the system is fully administered, resulting in account takeover and potential process deployment or script execution as the engine's service user.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Upgrade Camunda 7 to version 7.24.15 or later.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA Camunda 7 (Camunda) Fixed in 7.24.15
Timeline
- 2026-10-06 Threatist record created from CVE-2026-77226
- 2026-10-06 Alias added: GHSA-mx4r-g275-wg5r
- 2026-10-07 CISA SSVC decision points changed
- 2026-10-07 Priority changed: MEDIUM → HIGH
References
Exploit 1
Patch 1
More Camunda vulnerabilities
- TI-2026-76421 Expression injection in Camunda 7 orQueries enables command execution CVSS 4.0CRITICAL 9.3
- TI-2026-76420 Missing authorization in Camunda task comments and attachments CVSS 4.0HIGH 8.6
- TI-2026-76422 Broken access control in Camunda Cockpit exposes process data CVSS 4.0MEDIUM 6.0
- TI-2021-09385 Camunda Modeler (aka camunda-modeler) through 4.6.0 allows arbitrary file access. CVSS 3.1CRITICAL 9.1
- TI-2021-06144 Prototype pollution in min-dash CVSS 3.1HIGH 7.5
- TI-2024-34492 WordPress bpmn.io plugin <= 1.0 - Stored Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5
Sources
- CVE-2026-77226 · CVE Program
- CVE-2026-77226 · NVD
- FIRST EPSS
- GHSA-mx4r-g275-wg5r · GitHub Advisory Database · CC BY 4.0
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