CVE-2026-91145

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Source
https://cve.org/CVERecord?id=CVE-2026-91145
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91145.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-91145
Published
2026-09-14T21:45:45Z
Modified
2026-09-17T03:30:34Z
Severity
  • 7.1 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Activiti through 7.1.0.M6 Expression Injection via Mail Task
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-917"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/91xxx/CVE-2026-91145.json"
}
References

Affected packages

Git / github.com/activiti/activiti

Affected ranges

Type
GIT
Repo
https://github.com/activiti/activiti
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
22d8f121451e049ea84a726064162b60d9b3aa69
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "7.1.0.M6"
        },
        {
            "fixed": "7.1.0.M6"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

activiti-5.*
activiti-5.12.1
activiti-5.13
activiti-5.14
activiti-5.15
activiti-5.16
activiti-5.16.1
activiti-5.16.2
activiti-5.16.3
activiti-5.16.4
activiti-5.17.0
activiti-6.*
activiti-6.0.0
activiti-6.0.0.Beta2
activiti-6.0.0.Beta3
activiti-6.0.0.Beta4
activiti-6.0.0.RC1
Other
activiti-7-201708-EA
activiti-7-201708HOTFIX-EA
activiti-7-201709-EA

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-91145.json"