grobidOrg GROBID up to 0.9.0 PDF Conversion DocumentSource.java ProcessRunner.run filename os command injection

Summaryinfo

A vulnerability classified as critical was found in grobidOrg GROBID up to 0.9.0. This affects the function ProcessRunner.run of the file grobid-core/src/main/java/org/grobid/core/document/DocumentSource.java of the component PDF Conversion. Executing a manipulation of the argument filename can lead to os command injection. This vulnerability is tracked as CVE-2026-123357. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in grobidOrg GROBID up to 0.9.0. This vulnerability affects the function ProcessRunner.run of the file grobid-core/src/main/java/org/grobid/core/document/DocumentSource.java of the component PDF Conversion. The manipulation of the argument filename with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command before it is sent to a downstream component. The impact remains unknown. CVE summarizes:

GROBID is machine learning software for extracting information from scholarly documents. Prior to 0.9.1, the Linux non-server PDF conversion path in grobid-core/src/main/java/org/grobid/core/document/DocumentSource.java passes an attacker-influenced PDF filename through DocumentSource.pdfalto, which interpolates the path into a bash -c command string. A single quote in the filename can terminate the intended quoting, and ProcessRunner.run in grobid-core/src/main/java/org/grobid/core/process/ProcessRunner.java starts the resulting command through ProcessBuilder, allowing arbitrary commands to execute with GROBID process privileges. The bundled REST server path is not affected. This issue is fixed in version 0.9.1.

The advisory is available at github.com. This vulnerability was named CVE-2026-123357 since 11/05/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1202 by the MITRE ATT&CK project.

Upgrading to version 0.9.1 eliminates this vulnerability.

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Productinfo

Vendor

• grobidOrg

Name

• GROBID

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9.0

Website

• Product: https://github.com/grobidOrg/grobid/

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