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CVE-2026-87976

Apache NiFi Registry: Improper Limitation of Pathname in Persisted Extension Bundles

CVSS 4.0 7.2 HIGHCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-87976

Published

Apache NiFi Registry 0.4.0 through 2.11.0 are subject to path manipulation when storing extension bundle content using group, artifact, and version coordinates from uploaded NAR manifests. The default file persistence provider used coordinates as filesystem path components without rejected parent-directory names, and the path-containment check compared an unnormalized resolved path. An authenticated user authorized to write and delete bundles in a bucket can upload a NAR with a crafted manifest resulting in file system operations outside of the file persistence directory. Upgrading to Apache NiFi Registry 2.12.0 is the recommended mitigation, which rejects parent-directory coordinates and requires a normalized path to remain a strict child of the storage root location.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-87976

Published

org.apache.nifi.registry:nifi-registry-framework

https://repo.maven.apache.org/maven2

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Apache Software Foundation",
                    "product": "Apache NiFi Registry",
                    "collectionURL": "https://repo.maven.apache.org/maven2",
                    "packageName": "org.apache.nifi.registry:nifi-registry-framework",
                    "packageURL": "pkg:maven/org.apache.nifi.registry/nifi-registry-framework",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0.4.0",
                            "lessThanOrEqual": "2.11.0",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON