What’s Vulnerable › Vulnerabilities

CVE-2026-16139: Arbitrary file write via path traversal in Progress ShareFile Storage Zones Controller potentially leading to remote code execution

• Severity: high (CVSS 7.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-17 · updated 2026-09-02
• Weakness: CWE-20

Description

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.

Affected products

• Progress ShareFile Storage Zones Controller: before 5.12.6; from 6.0 before 6.0.3 — fixed in 5.12.6, 6.0.3

How to fix

Upgrade to a fixed version: Progress ShareFile Storage Zones Controller 5.12.6, 6.0.3. Check the vendor advisory for mitigations.

References

• https://support.sharefile.com/s/article/ShareFile-Storage-Zone-Controller-SZC-Service-Disruption-Guidance-Login-Issues-and-Access-Information

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