NVD / CVE Program· CNA apache

CVE-2022-33140: Improper Neutralization of Command Elements in Shell User Group Provider

Noroxi assessment

Priority: Monitor (action score 36/100)

Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 3.7% (FIRST EPSS); higher than 89.8% of all records.
Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: org.apache.nifi:nifi (Maven) 1.16.3; org.apache.nifi.registry:nifi-registry-core (Maven) 1.16.3.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to org.apache.nifi:nifi (Maven) 1.16.3; org.apache.nifi.registry:nifi-registry-core (Maven) 1.16.3 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The optional ShellUserGroupProvider in Apache NiFi 1.10.0 to 1.16.2 and Apache NiFi Registry 0.6.0 to 1.16.2 does not neutralize arguments for group resolution commands, allowing injection of operating system commands on Linux and macOS platforms. The ShellUserGroupProvider is not included in the default configuration. Command injection requires ShellUserGroupProvider to be one of the enabled User Group Providers in the Authorizers configuration. Command injection also requires an authenticated user with elevated privileges. Apache NiFi requires an authenticated user with authorization to modify access policies in order to execute the command. Apache NiFi Registry requires an authenticated user with authorization to read user groups in order to execute the command. The resolution removes command formatting based on user-provided arguments.

HighCVSS 8.8 · v3.1—Proof of concept Fix available

GHSA-77hf-23pq-2g7c

Published: Jun 15, 2022
Updated: Jun 17, 2026
EPSS: 3.7% · 89th percentile
CWE: CWE-78

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 35 / 40 · 8.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 3.7%

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
apache	nifi	cpe:2.3:a:apache:nifi
apache	nifi registry	cpe:2.3:a:apache:nifi_registry
apple	macos	cpe:2.3:o:apple:macos
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

apache nifi1.10.0 and later · up to 1.16.2 inclusive
apache nifi registry0.6.0 and later · up to 1.16.2 inclusive

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

Apache Software Foundation Apache NiFi
- up to 1.16.2 and later · up to and including 1.16.2affected
- 1.10.0 and later · before 1.10.0*affected
Apache Software Foundation Apache NiFi Registry
- up to 1.16.2 and later · up to and including 1.16.2affected
- 0.6.0 and later · before 0.6.0*affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Maven	org.apache.nifi:nifi	from 1.10.0 · before 1.16.3	1.16.3
Maven	org.apache.nifi.registry:nifi-registry-core	from 0.6.0 · before 1.16.3	1.16.3

Same product

apache: all records

Other highest-scoring records for the same primary product.

CVE-2023-34468Apache NiFi: Potential Code Injection with Database Services using H2
54Plan
CVE-2018-1309Apache NiFi External XML Entity issue in SplitXML processor.
40Plan
CVE-2017-15697A malicious X-ProxyContextPath or X-Forwarded-Context header containing external resources or embedded code could cause remote code executio
40Plan

Published before and after this one in the same product

← EarlierCVE-2022-26850Apr 6, 2022 · Insufficiently protected credentials
17Monitor
← EarlierCVE-2022-29265Apr 30, 2022 · Improper Restriction of XML External Entity References in Multiple Components
31Monitor
Later →CVE-2023-22832Feb 10, 2023 · Apache NiFi: Improper Restriction of XML External Entity References in ExtractCCDAAttributes
30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Maven:org.apache.nifi:nifi	1.16.3	Package registry (OSV)
Maven:org.apache.nifi.registry:nifi-registry-core	1.16.3	Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:0	2025-08-17

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

PublishedJun 15, 2022
First PoCAug 17, 2025+1159 d
TodayOct 28, 2026+1596 d

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

TR-22-0431 · Jun 16, 2022(Apache Güvenlik Zafiyeti)

All national notices →

Technical details

Attack conditions

Anyone who can reach it over the internet can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSS vector

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

nvd-primary

Root cause

User input is inserted as text into a shell command. The shell may interpret special characters in the input as part of the command.

The bug in code

The whole CWE-78 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const host = req.body.host;
2exec("ping -c 1 " + host, onResult);

Fixed

1const host = req.body.host;
2if (!/^[a-z0-9.-]{1,253}$/i.test(host)) return res.sendStatus(400);
3execFile("ping", ["-c", "1", host], onResult);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:46 PM UTC

For records you follow, these changes also arrive as notifications. →

References

lists.apache.org/thread/bzs2pcdjsdrh5039oslmfr9mbs9qqdhr

Show all references (1 more)

nifi.apache.org/security.html#CVE-2022-33140

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

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