CVE-2026-40503

OpenHarness Path Traversal Information Disclosure via /memory show

State: Published
Severity: 7.1 High
Published: Apr 16, 2026
Updated: Jul 14, 2026
Reserved: Apr 13, 2026

Description

OpenHarness prior to commit dd1d235 contains a path traversal vulnerability that allows remote gateway users with chat access to read arbitrary files by supplying path traversal sequences to the /memory show slash command. Attackers can manipulate the path input parameter to escape the project memory directory and access sensitive files accessible to the OpenHarness process without filesystem containment validation.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	VulnCheck

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
OpenHarnessHKUDS	before dd1d235450dd987b20bff01b7bfb02fe8620a0afAffected

References

https://github.com/HKUDS/OpenHarness/pull/127issue-tracking
https://github.com/HKUDS/OpenHarness/commit/dd1d235450dd987b20bff01b7bfb02fe8620a0afpatch
https://www.vulncheck.com/advisories/openharness-path-traversal-information-disclosure-via-memory-showthird-party-advisory

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