Path Traversal Vulnerability in OpenHarness by HKUDS
CVE-2026-40503

7.1HIGH

Key Information:

Vendor

Hkuds

Status
Openharness
Vendor
CVE Published:
16 April 2026

What is CVE-2026-40503?

OpenHarness contains a path traversal vulnerability that allows remote gateway users, having chat access, to exploit the '/memory show' command to read arbitrary files. By manipulating the path input parameter, attackers can navigate beyond the project memory directory and potentially gain unauthorized access to sensitive files that the OpenHarness process can read, without any filesystem containment validation in place.

Affected Version(s)

OpenHarness 0

References

https://github.com/HKUDS/OpenHarness/pull/127
issue-tracking
https://github.com/HKUDS/OpenHarness/commit/dd1d235450dd9...
patch
https://www.vulncheck.com/advisories/openharness-path-tra...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Chia Min Jun Lennon
.