Is CVE-2026-56122 actively exploited?

No active exploitation of CVE-2026-56122 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-56122 be exploited remotely?

Yes. CVE-2026-56122 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-56122?

CVE-2026-56122 has a CVSS score of 7.5 (HIGH).

HOME VULNERABILITIESCVE-2026-56122

HIGH

CVE-2026-56122

CWE-22Published: June 25, 2026· Updated: Jun 25, 2026

7.5

CVSS v3.1

EPSS:0.38%probability of exploitation in 30 daysPercentile:29.5th

Official Description

Winstone Servlet Engine through 0.9.10 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files by sending HTTP GET requests with dot-dot-slash sequences that are not sanitized when serving static files from the configured webroot. Attackers can traverse outside the webroot directory using traversal-prefixed paths in a single HTTP request to read any file accessible to the servlet engine process, including sensitive system files when the service runs with elevated privileges.

NVD Source

Technical Analysis

CVE-2026-56122 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.