High severity · published Sep 14, 2026
CVE-2026-90691
0x4m4 HexStrike AI API Files Endpoint hexstrike_server.py FileOperationsManager path traversal
8.3
CVSS
0.6%
EPSS
No
On KEV
Description
A security vulnerability has been detected in 0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04. The impacted element is the function FileOperationsManager of the file hexstrike_server.py of the component API Files Endpoint. The manipulation of the argument filename leads to path traversal. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
HexStrike AI · 0x4m4
d689933ff579d839c676c82b231f8e98326c5f04 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-90691
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-90691
github.com
https://github.com/0x4m4/hexstrike-ai/issues/135
github.com
https://github.com/0x4m4/hexstrike-ai/issues/225
github.com
https://github.com/0x4m4/hexstrike-ai/pull/159
vuldb.com
https://vuldb.com/cve/CVE-2026-90691
vuldb.com
https://vuldb.com/submit/914893
vuldb.com
https://vuldb.com/vuln/403224
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