CVE-2026-16139: In Progress ShareFile Storage Zones Controller versions <= 5.12.5 and <= 6.0.2, an authenticated zone administ

This month

HIGH 7.2UPGRADE

CVE-2026-16139 is a high-severity flaw (CVSS 7.2) affecting sharefile storage zones controller. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Progress ShareFile Storage Zones Controller versions <= 5.12.5 and <= 6.0.2, an authenticated zone administrator can exploit improper validation in the download preparation flow, enabling attacker-controlled files to be written outside the intended preparation directory. This can lead to remote code execution in v5 versions. Remote code execution is not confirmed on v6 versions.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-20, CWE-22, CWE-73
Published	2026-08-17
Last modified	2026-09-02

Publisher (CNA): Progress Software Corporation · Vendor: progress

Last updated 2026-09-02 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-17 14:20 UTCPublished CVE record published
2026-09-02 18:47 UTCUpdated Record last modified

progress sharefile storage zones controller UPGRADE

Affected: < 5.12.6 · >= 6.0 and < 6.0.3

Fixed in: 5.12.6, 6.0.3

Safe to downgrade to: a release before 6.0

1. Check installed version

apt-cache policy sharefile-storage-zones-controller || rpm -q sharefile-storage-zones-controller || sharefile-storage-zones-controller --version

2. UPGRADE to 5.12.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sharefile-storage-zones-controller

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sharefile-storage-zones-controller

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 6.0 (Debian / Ubuntu)

apt-cache madison sharefile-storage-zones-controller sudo apt install sharefile-storage-zones-controller=<VERSION_BEFORE_6.0> sudo apt-mark hold sharefile-storage-zones-controller

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sharefile-storage-zones-controller sudo dnf downgrade sharefile-storage-zones-controller-<VERSION_BEFORE_6.0> sudo dnf versionlock add sharefile-storage-zones-controller

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.

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.

Quick answers

How do I fix CVE-2026-16139?

sharefile storage zones controller: upgrade to 5.12.6, 6.0.3. Exact commands for each OS are on this page.

Is CVE-2026-16139 being exploited?

CVE-2026-16139 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-16139 affect?

CVE-2026-16139 affects sharefile storage zones controller. Severity is high (CVSS 7.2). In Progress ShareFile Storage Zones Controller versions <= 5.12.5 and <= 6.0.2, an authenticated zone administrator can exploit improper validation in the download preparation flow, enabling attacker-controlled files to be written outside t

How urgent is CVE-2026-16139?

Priority 40/100. High severity

Related CVEs

CVE-2026-2699 CRITICAL 9.8 UPGRADE Customer Managed ShareFile Storage Zones Controller (SZC) allows an unauthenticated attacker to access restric
CVE-2026-2701 CRITICAL 9.1 UPGRADE Authenticated user can upload a malicious file to the server and execute it, which leads to remote code execut
CVE-2026-15724 HIGH 8.7 UPGRADE In Progress ShareFile Storage Zones Controller versions prior to 5.12.5 and 6.0.2, an authenticated administra
CVE-2026-16138 HIGH 8.0 UPGRADE In Progress ShareFile Storage Zones Controller v5.12.5 and below versions, unsafe deserialization of untrusted
CVE-2026-16137 HIGH 7.2 UPGRADE In Progress ShareFile Storage Zones Controller v5.12.5 and below, a party with valid zone credentials can perf

References

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