What is the CVSS score of CVE-2026-22600?

CVE-2026-22600 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L. EPSS exploitation probability: 0.0%.

Openproject CVE-2026-22600

Q: How to fix or mitigate CVE-2026-22600?

Within 24 hours: Identify all affected systems running the work package PDF export functionality of OpenProject and apply vendor patches immediately. Vendor patch is available.

CRITICAL

Information Exposure (CWE-200)

2026-01-10 security-advisories@github.com

Information Disclosure Openproject

9.1

CVSS 3.1 · GitHub Advisory

View

Attack ChainAIDerived

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

Access

Upload SVG file disguised as PNG attachment
Exploit

Trigger PDF export of work package
Execution

ImageMagick processes malicious SVG
Impact

Text coder reads arbitrary local files

Vulnerability Assessment

Weakness	CWE CWE-200 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V14 - Data Protection Data exposure prevention MITRE ATT&CK 2 techniques across 2 tactics: Collection, Discovery 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	Authenticated user account required. OpenProject versions prior to 16.6.4 with work package PDF export feature enabled and ImageMagick backend processing attachments.
Impact	CVSS 9.1 (Critical). Low privileges, network vector, low complexity, scope change. ImageMagick SVG processing vulnerabilities are a well-known attack class. EPSS 0.02%. Patch available.
Exploit ScenarioDerived	An attacker uploads an SVG containing <image href='file:///etc/passwd'/> disguised as attachment.png. When any user exports the work package to PDF, the server's /etc/passwd is embedded in the output. Targeting configuration files yields database credentials and secrets.

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

Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

OpenProject (before 16.6.4) has a local file read vulnerability through SVG-based ImageMagick exploitation in the PDF export feature. Authenticated users can read server files by uploading malicious SVGs disguised as PNGs. Patch available.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:54 CVSS 9.1

OpenProject PDF export processes malicious SVG files through ImageMagick, enabling authenticated local file read with scope change.

RemediationAI

Update to OpenProject 5.8.21 or 4.16.17. Configure ImageMagick policy.xml to block SVG processing and file:// protocol.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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

Technical ContextAI · show details

An attacker uploads an SVG file (disguised with a PNG extension) as a work package attachment. When the work package is exported to PDF, ImageMagick processes the SVG which can contain directives to read local files (CWE-200). The file contents are embedded in the generated PDF.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

GitHub Advisory PRIMARY 9.1 CRITICAL

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

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

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

Low

Availability

Low

Lifecycle Timeline

Patch released

Jan 14, 2026 - 22:25 nvd

Patch available

CVE Published

Jan 10, 2026 - 02:15 nvd

CRITICAL 9.1

DescriptionGitHub Advisory

OpenProject is an open-source, web-based project management software. A Local File Read (LFR) vulnerability exists in the work package PDF export functionality of OpenProject prior to version 16.6.4. By uploading a specially crafted SVG file (disguised as a PNG) as a work package attachment, an attacker can exploit the backend image processing engine (ImageMagick). When the work package is exported to PDF, the backend attempts to resize the image, triggering the ImageMagick text: coder. This allows an attacker to read arbitrary local files that the application user has permissions to access (e.g., /etc/passwd, all project configuration files, private project data, etc.). The attack requires permissions to upload attachments to a container that can be exported to PDF, such as a work package. The issue has been patched in version 16.6.4. Those who are unable to upgrade may apply the patch manually.

Executive ViewAI

Why It Matters

Organizations using the work package PDF export functionality of OpenProject face critical risk from CVE-2026-22600, a information exposure vulnerability rated CVSS 9.1. This could expose sensitive information including credentials, configuration data, or user records to unauthorized parties. A patch is available and should be applied immediately given the critical severity.

Business Impact: Severe

Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Restrict access to affected endpoints; (2) Implement additional authorization checks; (3) Enable audit logging.

Threat Intelligence Overview

EPSS Score

0.0%

Top 97% 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 0.0%

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.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +46

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.