Is CVE-2026-40515 actively exploited?

No active exploitation of CVE-2026-40515 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-40515 be exploited remotely?

Yes. CVE-2026-40515 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-40515?

CVE-2026-40515 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-40515

CWE-863Published: April 17, 2026· Updated: Apr 17, 2026

7.5

CVSS v3.1

EPSS:0.03%probability of exploitation in 30 daysPercentile:8.6th

Official Description

OpenHarness before commit bd4df81 contains a permission bypass vulnerability that allows attackers to read sensitive files by exploiting incomplete path normalization in the permission checker. Attackers can invoke the built-in grep and glob tools with sensitive root directories that are not properly evaluated against configured path rules, allowing disclosure of sensitive local file content, key material, configuration files, or directory contents despite configured path restrictions.

NVD Source

Technical Analysis

CVE-2026-40515 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.