Polyaxon up to 2.16.4 Jinja2 queue/namespace/conditions/presets/dependencies code injection

Summaryinfo

A vulnerability described as critical has been identified in Polyaxon up to 2.16.4. This issue affects some unknown processing of the component Jinja2. Executing a manipulation of the argument queue/namespace/conditions/presets/dependencies can lead to code injection. This vulnerability is tracked as CVE-2026-91925. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in Polyaxon up to 2.16.4 and classified as critical. This vulnerability affects an unknown code block of the component Jinja2. The manipulation of the argument queue/namespace/conditions/presets/dependencies with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Polyaxon through 2.16.4 renders operation specification fields with an unsandboxed Jinja2 environment during server-side run preparation, allowing authenticated users to execute arbitrary code. Attackers can submit runs with Jinja2 payloads in queue, namespace, conditions, presets, or dependencies fields to execute operating system commands in the scheduler process context, exposing database credentials and service tokens.

The advisory is available at github.com. This vulnerability was named CVE-2026-91925 since 09/15/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/15/2026). This vulnerability is assigned to T1059 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-78416). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Polyaxon

Version

• 2.16.0
• 2.16.1
• 2.16.2
• 2.16.3
• 2.16.4

Website

• Product: https://github.com/polyaxon/polyaxon/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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