---
title: "CVE-2026-87976: Apache NiFi Registry - Path Traversal"
description: "Apache NiFi Registry 0.4.0 through 2.11.0 contains a path traversal caused by improper validation of group, artifact, and version coordinates in uploaded NAR manifests, letting authenticated users with write/delete bundle permissions perform file operations outside the intended directory."
url: https://panop.io/threat-heartbeat/CVE-2026-87976/
---

# CVE-2026-87976 Apache NiFi Registry - Path Traversal

Apache NiFi Registry 0.4.0 through 2.11.0 contains a path traversal caused by improper validation of group, artifact, and version coordinates in uploaded NAR manifests, letting authenticated users with write/delete bundle permissions perform file operations outside the intended directory.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.79% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-87976)

## Details

Type

Path Traversal

Impact

File System Read, File System Write, Data Tampering

CVSS vector

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

Published

16 September 2026

Updated

15 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Upgrade to Apache NiFi Registry 2.12.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-87976](https://nvd.nist.gov/vuln/detail/CVE-2026-87976)
- [https://lists.apache.org/thread/kw89toml5zq20ry3279mx7y184vrlb8x](https://lists.apache.org/thread/kw89toml5zq20ry3279mx7y184vrlb8x)
- [http://www.openwall.com/lists/oss-security/2026/09/16/11](http://www.openwall.com/lists/oss-security/2026/09/16/11)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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