PatchTheCVECVE-2026-28672: Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in Apache Ra
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CRITICAL 9.8REMOTEWATCHLISTUPGRADE
CVE-2026-28672 is a critical-severity flaw (CVSS 9.8) affecting ranger. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- Critical severity
- CISA SSVC: automatable with total technical impact
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.8 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 2.6% (top 15%) |
| CISA exploited list | No |
| Weakness | CWE-77 |
| Published | 2026-08-10 |
| Last modified | 2026-10-23 |
Publisher (CNA): Apache Software Foundation · Vendor: apache
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
apache ranger UPGRADE
Affected: >= 0.6.0 and <= 2.8.0
Fixed in: newer than 2.8.0
Safe to downgrade to: a release before 0.6.0
1. Check installed version
apt-cache policy ranger || rpm -q ranger || ranger --version
2. UPGRADE to newer than 2.8.0 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade ranger
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade ranger
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 0.6.0 (Debian / Ubuntu)
apt-cache madison ranger
sudo apt install ranger=<VERSION_BEFORE_0.6.0>
sudo apt-mark hold ranger
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list ranger
sudo dnf downgrade ranger-<VERSION_BEFORE_0.6.0>
sudo dnf versionlock add ranger
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
Exact fixes by distribution
Maven · org.apache.ranger:ranger · NO FIX YET · vulnerable: >= 0.6.0, <= 2.8.0 · source
Fedora 46 · kwin-zones · FIXED · 1.0.13-1.fc46 · FEDORA-2026-95888f332b · source
sudo dnf upgrade --advisory=FEDORA-2026-95888f332b
Fedora ELN · nginx-mod-brotli · FIXED · 1.0.0~rc-16.eln159 · FEDORA-2026-501a6a8273 · source
sudo dnf upgrade --advisory=FEDORA-2026-501a6a8273
Public exploits and detection
Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.
- GitHub PoC: oscerd/CVE-2026-28672 (0 stars)
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
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