Activiti through 7.1.0.M6 fails to validate hash-brace deferred expressions in process variables, allowing attackers to bypass expression filtering. Attackers can inject expressions beginning with #{ that are stored and later evaluated in the full Spring context when a mail task uses variable-backed body fields, enabling method invocation on application beans.
History

Thu, 17 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Activiti
Activiti activiti
Vendors & Products Activiti
Activiti activiti

Tue, 15 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 14 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Description Activiti through 7.1.0.M6 fails to validate hash-brace deferred expressions in process variables, allowing attackers to bypass expression filtering. Attackers can inject expressions beginning with #{ that are stored and later evaluated in the full Spring context when a mail task uses variable-backed body fields, enabling method invocation on application beans.
Title Activiti through 7.1.0.M6 Expression Injection via Mail Task
Weaknesses CWE-917
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-14T21:45:45.317Z

Updated: 2026-09-24T14:22:12.311Z

Reserved: 2026-09-14T20:35:44.937Z

Link: CVE-2026-91145

cve-icon Vulnrichment

Updated: 2026-09-15T13:37:34.814Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-14T22:16:59.217

Modified: 2026-09-24T20:47:31.797

Link: CVE-2026-91145

cve-icon Redhat

No data.