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TI-2026-60009 Aliases CVE-2026-87976GHSA-6ghg-hh2v-f99w

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

Priority LOW 33CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00791 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache NiFi Registry0.4.0 – 2.11.0—No fix listedCNA
  • Apache NiFi Registry VendorApache Affected 0.4.0 – 2.11.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*0.4.0 to before 2.12.0VulnerableApache
  • cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:* Versions 0.4.0 to before 2.12.0 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-87976
  2. 2026-10-03 Alias added: GHSA-6ghg-hh2v-f99w

References

Advisory 2

  • TI-2023-17293 Apache NiFi: Potential Code Injection with Database Services using H2 CVSS 3.1HIGH 8.8
  • TI-2020-16549 Uncontrolled resource consumption in Eclipse Jetty CVSS 3.1MEDIUM 5.3
  • TI-2019-07411 Deserialization of untrusted data in Apache Commons Beanutils CVSS 3.1HIGH 7.3
  • TI-2017-11471 Improper input validation in Apache NiFi CVSS 3.0CRITICAL 9.8
  • TI-2018-01212 XML external entity injection in Apache NiFi CVSS 3.0CRITICAL 9.8
  • TI-2021-03489 Deserialization of untrusted data in jackson-databind CVSS 3.1HIGH 8.1
See all 58 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences