`CVE-2026-28672`

9.8 Critical Protected by RASP

Published 36 days ago. NVD backfills CPE data for days or weeks after publication, and OSV and the exploit indexes lag too. Scope and status here may change.

Description

Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Apache Ranger. This issue affects Apache Ranger: from 0.6 through 2.8.

CWE-77 · Command injection

Exploitation Status

No public exploit

Nothing published shows this CVE being exploited. The 1 repository below are public repositories under the 5-star bar: published, but with nobody other than their authors having looked.

CVSS E:U

CISA KEV not listed
CISA Vulnrichment exploitation: none
Indexed PoC 1 indexed Published artifacts you can open, in GitHub PoC; first seen 2026-08-24.
EPSS 1.3% chance in 30 days

1 of these are GitHub repositories below the 5★ evidence bar. They are listed because a person may still want to open one; they do not count toward the exploit maturity above.

Index	Artifact	Stars	First seen
GitHub PoC	Reproducer for CVE-2026-28672 (Apache Ranger UnixUserGroupBuilder OS command injection via username in the unixusersync module)		2026-08-24

Index

Artifact

Stars

First seen

GitHub PoC

Reproducer for CVE-2026-28672 (Apache Ranger UnixUserGroupBuilder OS command injection via username in the unixusersync module)

2026-08-24

Waratek Defense Posture

Protected by RASP

A Waratek agent blocks this today.

Applicable rule: Promoted to MITIGATED-BY-RASP (security rule): this CVE's weakness (CWE-77: Command Injection) can be mitigated by an ARMR command-injection security rule that blocks this class of attack at the JVM level, without requiring a CVE-specific patch.

Protection full a general security rule for the vulnerability class
Action available security rule
Review automated inferred
Record active

Decided by secure-rule-match : A vulnerability class already blocked by an ARMR security rule

Finding Promoted to MITIGATED-BY-RASP (security rule): this CVE's weakness (CWE-77: Command Injection) can be mitigated by an ARMR command-injection security rule that blocks this class of attack at the JVM level, without requiring a CVE-specific patch.

Decided by	`secure-rule-match` : A vulnerability class already blocked by an ARMR security rule
Finding	Promoted to MITIGATED-BY-RASP (security rule): this CVE's weakness (CWE-77: Command Injection) can be mitigated by an ARMR command-injection security rule that blocks this class of attack at the JVM level, without requiring a CVE-specific patch.

CVSS

9.8 CRITICAL v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 1 metric

VRT selects the newest version's highest entry and publishes it as cvssScore, newest rather than largest because scores are not comparable across versions, and highest rather than first because the first entry is frequently a CNA placeholder scoring 0.0 over NVD's own analysis.

Version Score Band Vector Assigner Type

CVSS 3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CISA-ADP Secondary published

Version	Score	Band	Vector	Assigner	Type
CVSS 3.1	9.8	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`	CISA-ADP	Secondary	published

Affected Software & Releases

☕ Maven Library Packages

Artifact coordinates and fix boundaries from OSV.dev

Package Coordinate Introduced Fixed Last affected

org.apache.ranger:ranger 0.6.0 none 2.8.0

Package Coordinate	Introduced	Fixed	Last affected
`org.apache.ranger:ranger`	0.6.0	none	2.8.0

🖥️ Product CPEs & Version Ranges

2 product(s) over 2 version claims (uncapped)

Source	Vendor	Product	Scheme	Affected Versions
nvd	apache	ranger	generic	≥ 0.6.0 and ≤ 2.8.0
osv	org.apache.ranger	ranger	generic	≥ 0.6.0 and ≤ 2.8.0

Source

Vendor

Product

Scheme

Affected Versions

nvd

apache

ranger

generic

≥ 0.6.0 and ≤ 2.8.0

osv

org.apache.ranger

ranger

generic

≥ 0.6.0 and ≤ 2.8.0

References

URL	Tags
https://github.com/apache/ranger	PACKAGE
https://lists.apache.org/thread/99ysjqcmz950o3jgm6pqx1wb696onzq7	WEB
http://www.openwall.com/lists/oss-security/2026/08/09/2	WEB

URL

Timeline

Published 2026-08-10 Last modified 2026-08-17

Published	2026-08-10	By the CVE Program.
NVD record modified	2026-08-17	NVD's own last-modified date for this record.

Published

2026-08-10

By the CVE Program.

NVD record modified

2026-08-17

NVD's own last-modified date for this record.

Pipeline policy audit (15 of 21 rules evaluated)

15 of 21 rules ran. The rest were never reached, because an earlier stage settled the CVE, a distinct claim from a rule that ran and found nothing.

# Rule Outcome Status Detail

identity: Does this identifier describe a vulnerability at all? first match wins

1 rejected no-match CVE Program withdrawal of this identifier

scope: Is the vulnerability ARMR's to address? first match wins

2 armr-patch-file no-match An ARMR patch file on disk for this CVE

3 armr-secure-rule-file no-match An ARMR security-rule template on disk for this CVE

4 manual-classification no-match A researcher's recorded decision for this specific CVE

5 manual classification no-match Manual classification of this CVE in the legacy dataset

6 non-java-upstream no-match A root cause in non-Java code: an OS kernel, a C library, or a bundled runtime

7 oracle-component no-match The defect being in a component of a tracked product the agent does not reach: JavaFX, the Java SE installer, the native WebLogic proxy plug-in. Oracle gives these no CPE of their own and names them only in the description.

8 osv-maven matched Queued for review Maven packages: org.apache.ranger:ranger

9 cna-maven-package not-reached An affected Maven artifact named by the CNA itself

10 known-cpe-product not-reached An NVD CPE naming a product ARMR tracks

11 cna-cpe-product not-reached A CPE the CNA published naming a tracked product. Oracle publishes these on advisory day, months before NVD.

12 oracle-advisory-family not-reached A tracked product family named in Oracle's own risk matrix. CPE cannot carry a suite name, only a module.

13 non-deployable-product not-reached The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached

14 unmatched-product not-reached No tracked product matched above, and none present at all

disposition: What do we do about one that is? cumulative: every rule gets a turn

15 patch-hint no-match A reference pointing at the upstream fix: a commit, a PR, a Red Hat bug

16 open-source-maven matched Mitigation candidate Open-source Maven artifact indexed by OSV (Maven packages: org.apache.ranger:ranger). The source is public, which makes an ARMR patch rule a candidate; nothing here establishes that one can be written.

17 poc-derivable skipped An indexed exploit to reverse-engineer, where there is no source to read

18 no-exploit skipped With no fix path, a public exploit, or a CISA record of one

19 secure-rule-match decided it matched Protected by RASP CWE-77 (Command Injection) is mitigable by an ARMR command-injection security rule.

20 below-action-threshold skipped Medium or Low severity, no KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory

21 no-exploit-published skipped A published working exploit for this candidate, not only a proof of concept, a forecast, or nothing at all

What the scope rules read

The products the record named, and whether known-products.yaml tracks them. This is the evidence the scope stage decided on.

Vendor Product Tracked CPE Source

apache ranger not tracked cpe:2.3:a:apache:ranger:*:*:*:*:*:*:*:*

Raw stored JSON document for this CVE ↗ · NVD ↗ · CVE.org ↗