CVE-2026-39816

HIGH

8.8

Description

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.

Details CVE

Score CVSS v3.18.8

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie5/8/2026

Derniere modification5/9/2026

Sourcenvd

Observations honeypot0

Produits affectes

apache:nifi

Faiblesses (CWE)

CWE-862

References

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)

Correlations IOC

Aucune correlation enregistree

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