Vulnerability in Polyaxon
CVE-2026-91925
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/polyaxon/cli/blob/bfea04a0bf93886f69a3195954204d9d010b55aa/cli/polya… (technical-description)
- github.com/polyaxon/cli/blob/bfea04a0bf93886f69a3195954204d9d010b55aa/cli/polya… (technical-description)
- github.com/polyaxon/polyaxon (product)
- github.com/polyaxon/polyaxon/issues/1540 (issue-tracking)
- www.vulncheck.com/advisories/polyaxon-through-2.16.4-server-side-template-injec… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-91925?
- CVE-2026-91925 is a high-severity vulnerability in Polyaxon, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 8.8/10. Published 2026-09-15.
- How severe is CVE-2026-91925?
- High severity. CVSS v3 base score is 8.8 out of 10.