CVE-2026-39816

HIGH

8.8

Beschreibung

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.

CVE Details

CVSS v3.1 Bewertung8.8

SchweregradHIGH

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

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienLOW

BenutzerinteraktionNONE

Veroffentlicht5/8/2026

Zuletzt geandert5/9/2026

Quellenvd

Honeypot-Sichtungen0

Betroffene Produkte

apache:nifi

Schwachen (CWE)

CWE-862

Referenzen

https://lists.apache.org/thread/gh9g7xwvv4l20gzff6q3367snf35ctcb(security@apache.org)

http://www.openwall.com/lists/oss-security/2026/04/13/8(af854a3a-2127-422b-91ae-364da2661108)

https://zeropath.com/blog/nifi-cve-2026-39816-privesc-rce(af854a3a-2127-422b-91ae-364da2661108)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.