CVE-2026-39816

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-39816
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39816.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-39816
Aliases
Downstream
Published
2026-05-08T13:38:12.925Z
Modified
2026-07-15T01:48:50.644861616Z
Severity
  • 7.5 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/AU:Y/R:I/V:C/RE:L/U:Green CVSS Calculator
Summary
Apache NiFi: Missing Execute Code Required Permission on TinkerpopClientService
Details

The optional extension component TinkerpopClientService is missing the Restricted annotation with the Execute Code Required Permission in Apache NiFi 2.0.0-M1 through 2.8.0. The TinkerpopClientService supports configuration of ByteCode Submission for the Script Submission Type, enabling Groovy Script execution in the service prior to submitting the query. The missing Restricted annotation allows users without the Execute Code Permission to configure the Service in installations that use fine-grained authorization and have the optional TinkerpopClientService installed. Apache NiFi installations that do not have the nifi-other-graph-services-nar installed are not subject to this vulnerability. Upgrading to Apache NiFi 2.9.0 is the recommended mitigation.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39816.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "2.0.0-M1"
                },
                {
                    "last_affected": "2.8.0"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "2.0.0-M1"
                },
                {
                    "fixed": "2.8.0"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-862"
    ],
    "cna_assigner": "apache"
}
References

Affected packages

Git / github.com/apache/nifi

Affected ranges

Type
GIT
Repo
https://github.com/apache/nifi
Events
Introduced
2f13b609bdb77cb985aa35e8b66b4f04274d7c59
Fixed
02a8c6e75e7c9835f2afc7cf42c45a6b0478504b
Database specific 
{
    "cpe": "cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "2.0.0"
        },
        {
            "fixed": "2.9.0"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39816.json"