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HexStrike AI EUVDEUVD-2026-77244

| CVE-2026-90691 MEDIUM
Path Traversal (CWE-22)
2026-09-14 VulDB GHSA-qr7w-g3j4-2vq2
5.5
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
7.3 HIGH

Network-reachable API with no authentication required (PR:N, AV:N, AC:L); C/I/A all Low reflecting OS permission bounds on the server process rather than full system compromise.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

4
CVSS changed
Sep 14, 2026 - 07:22 NVD
6.9 (MEDIUM) 5.5 (MEDIUM)
Source Code Evidence Fetched
Sep 14, 2026 - 07:21 vuln.today
Analysis Generated
Sep 14, 2026 - 07:21 vuln.today
CVE Published
Sep 14, 2026 - 06:45 cve.org
MEDIUM 6.9

DescriptionCVE.org

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.

AnalysisAI

Path traversal in HexStrike AI's FileOperationsManager API endpoint allows unauthenticated remote attackers to read, write, modify, and delete files outside the intended sandbox directory by supplying .. sequences in the filename parameter. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation The hexstrike_server.py API Files Endpoint must be reachable over a network. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) confirms network-reachable, unauthenticated, zero-complexity exploitation - a high inherent severity. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Apply the fix from GitHub pull request #159 (https://github.com/0x4m4/hexstrike-ai/pull/159), which introduces the `_validate_path()` method to all file operation calls in FileOperationsManager. … Detailed patch versions, workarounds, and compensating controls in full report.

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EUVD-2026-77244 vulnerability details – vuln.today

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