Medium severity · published Apr 16, 2026
CVE-2026-40503
OpenHarness Path Traversal Information Disclosure via /memory show
6.5
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 35% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenHarness · HKUDS
before dd1d235450dd987b20bff01b7bfb02fe8620a0af · source: vendor, NVD
Affected product
OP
OpenHarness
HKUDS
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