CVE-2026-28672

Apache Ranger: OS Command Injection via Username in UnixUserGroupBuilder

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.

Affected

Apache Software Foundation · Apache Ranger

CVSS v3.1 CNA

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

EPSS

2.63% chance of exploitation in the next 30 days, 85th percentile

Published

2026-08-10

Updated

2026-08-12

Proof-of-concept exploits (1)

• oscerd/CVE-2026-286720★ · 2026-08-24

Security advisories

• https://lists.apache.org/thread/99ysjqcmz950o3jgm6pqx1wb696onzq7
• http://www.openwall.com/lists/oss-security/2026/08/09/2
• advisories/GHSA-6qc3-v8fv-fv9j

References

• CVE Record
• NVD entry