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Python EUVDEUVD-2026-50068

| CVE-2026-55390 HIGH
Path Traversal (CWE-22)
2026-07-28 GitHub_M GHSA-442q-2j6p-642g
7.5
CVSS 3.1 · Vendor: GitHub_M
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Vulnerability Assessment

Weakness
CWE
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.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 29, 2026

Arbitrary local file read in datamodel-code-generator versions 0.59.0 to 0.61.0 via path traversal in XSD parsing allows unauthenticated attackers who control an input XML Schema to read any file readable by the generator process, with the contents reflected into generated models. A public proof-of-concept exploit exists, and the issue is fixed in version 0.62.0.

Affected VersionsENISA

datamodel-code-generator 0.59.0, < 0.62.0

Affected Packages

pypi datamodel-code-generator fix: 0.62.0

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.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (GitHub_M) PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from Vendor (GitHub_M) · only source for this CVE.

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

2
Patch available
Jul 28, 2026 - 22:02 EUVD
CVE Published
Jul 28, 2026 - 21:25 cve.org
HIGH 7.5

DescriptionCVE.org

datamodel-code-generator generates Python data models from schema definitions. From 0.59.0 until 0.62.0, XML Schema parsing in src/datamodel_code_generator/parser/xmlschema.py for --input-file-type xmlschema resolves xs:include, xs:import, xs:redefine, and xs:override schemaLocation values outside the input base path, allowing arbitrary local files to be read and reflected into generated models. This issue is fixed in version 0.62.0.

Executive ViewAI

Why It Matters

The datamodel-code-generator tool, used to automate model generation from XML schemas, contains a critical file read vulnerability (CVE-2026-55390) that lets an unauthenticated attacker with control over an input schema read arbitrary files on the server. This could expose sensitive configuration files, source code, or customer data, putting development and production environments at risk. Immediate patching is essential to prevent data breaches.

Recommended Action

Within 24 hours, upgrade all instances of datamodel-code-generator to version 0.62.0, which fixes the path traversal issue. Over the next 7 days, audit logs for any unusual file access patterns or unexpected model outputs that may indicate exploitation. Within 30 days, review and restrict the tool's file system permissions to limit the impact of any similar vulnerabilities and ensure all dependencies are up-to-date.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.4%
Top 71% exploitable
Threat Intel
1
1 sources
Social Media
4
Sightings
Data Quality
6 sources
Confidence: High

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 HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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.

SSVC AssessmentENISA

SSVC Decision
Out-of-Cycle
Exploitation
Poc
System Exposure· derived
Open
Automatable
Yes
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

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