What is the CVSS score of CVE-2026-28795?

CVE-2026-28795 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

How to fix or mitigate CVE-2026-28795?

Within 24 hours: Identify all OpenChatBI deployments in your environment and assess data sensitivity. Within 7 days: Apply the available vendor patch to all affected instances. Within 30 days: Conduct post-patch security validation and review access logs for signs of exploitation.

Openchatbi CVE-2026-28795

CRITICAL

Path Traversal (CWE-22)

2026-03-06 security-advisories@github.com

GHSA-vmwq-8g8c-jm79

Path Traversal AI / ML Openchatbi

9.8

CVSS 3.1 · GitHub Advisory

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Send crafted request with malicious file_format parameter
Exploit

Bypass path traversal validation in save_report.py
Execution

Write arbitrary files to filesystem
Impact

Execute code or access sensitive data

Vulnerability Assessment

Weakness	CWE CWE-22 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V5 - File Handling Path canonicalization, traversal prevention MITRE ATT&CK 2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	OpenChatBI versions prior to 0.2.2 with save_report tool accessible. No authentication required; remote unauthenticated attacker can manipulate file_format parameter in save_report API endpoint to traverse directory structure.
Impact	CVSS 9.8.
Exploit ScenarioDerived	Traverse filesystem.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Path traversal in OpenChatBI before fix. PoC and patch available.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 22:06 CVSS 9.8

Path traversal in OpenChatBI.

RemediationAI

Update.

Affected Packages

pypi openchatbi fix: 0.2.2

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in pypi

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-22.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

GitHub Advisory PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Mar 10, 2026 - 19:45 nvd

Patch available

CVE Published

Mar 06, 2026 - 07:16 nvd

CRITICAL 9.8

DescriptionGitHub Advisory

OpenChatBI is an intelligent chat-based BI tool powered by large language models, designed to help users query, analyze, and visualize data through natural language conversations. Prior to version 0.2.2, the save_report tool in openchatbi/tool/save_report.py suffers from a critical path traversal vulnerability due to insufficient input sanitization of the file_format parameter. This issue has been patched in version 0.2.2.

Executive ViewAI

Why It Matters

CVE-2026-28795 is a critical vulnerability in OpenChatBI that could allow attackers to compromise systems and access sensitive business data through the chat interface. Any organization using OpenChatBI for data analysis and business intelligence is at immediate risk of unauthorized data access and potential system takeover.

Business Impact: Severe

Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score

0.1%

Top 77% exploitable

Data Quality

4 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC No

EPSS 0.1%

Patch available Yes

Active threat No

Deciding rule

CRITICAL severity

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.