Artifex PyMuPDF up to 1.26.6 _main_.py path traversal

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Artifex PyMuPDF up to 1.26.6. It has been rated as critical. This issue affects some unknown processing of the file _main_.py. Performing a manipulation results in path traversal. This vulnerability is cataloged as CVE-2026-3029. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Artifex PyMuPDF up to 1.26.6. This affects an unknown function of the file _main_.py. The manipulation with an unknown input leads to a path traversal vulnerability. CWE is classifying the issue as CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A path traversal and arbitrary file write vulnerability exist in the embedded get function in '_main_.py' in PyMuPDF version, 1.26.5.

This vulnerability is uniquely identified as CVE-2026-3029 since 02/23/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1006 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 303114 (Linux Distros Unpatched Vulnerability : CVE-2026-3029), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.26.7 eliminates this vulnerability. Applying the patch 603cafe38a183b8bab34f16d05043b4185d8d40a is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (303114) and EUVD (EUVD-2026-13117). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 7.5
ADP CISA Vector: 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 303114
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2026-3029

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PyMuPDF 1.26.7
Patch: 603cafe38a183b8bab34f16d05043b4185d8d40a

Timelineinfo

02/23/2026 CVE reserved
03/19/2026 +24 days Advisory disclosed
03/19/2026 +0 days VulDB entry created
03/24/2026 +5 days VulDB entry last update

Sourcesinfo

Vendor: artifex.com

Status: Confirmed

CVE: CVE-2026-3029 (🔒)
GCVE (CVE): GCVE-0-2026-3029
GCVE (VulDB): GCVE-100-351729
EUVD: 🔒

Entryinfo

Created: 03/19/2026 17:28
Updated: 03/24/2026 04:32
Changes: 03/19/2026 17:28 (57), 03/19/2026 18:11 (1), 03/23/2026 21:38 (2), 03/24/2026 01:16 (1), 03/24/2026 04:32 (11)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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