# CVE-2026-91925

## Summary

- **CVE ID:** CVE-2026-91925
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-1336
- **Published:** Sep 15, 2026
- **Last Modified:** Sep 15, 2026

## Description

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.

## Affected Products

- polyaxon — polyaxon (0)

## References

- [CNA](https://github.com/polyaxon/polyaxon/issues/1540)
- [CNA](https://github.com/polyaxon/polyaxon)
- [CNA](https://github.com/polyaxon/cli/blob/bfea04a0bf93886f69a3195954204d9d010b55aa/cli/polyaxon/_polyaxonfile/specs/libs/engine.py)
- [CNA](https://github.com/polyaxon/cli/blob/bfea04a0bf93886f69a3195954204d9d010b55aa/cli/polyaxon/_polyaxonfile/specs/sections.py)
- [CNA](https://www.vulncheck.com/advisories/polyaxon-through-2.16.4-server-side-template-injection-via-unsandboxed-jinja2-engine)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.48%
- **EPSS Percentile:** 40.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._