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Ssti EUVDEUVD-2026-78416

| CVE-2026-91925 HIGH
Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)
2026-09-15 VulnCheck GHSA-w7qq-x87w-72qx
8.7
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
8.7 HIGH
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

2
Analysis Generated
Sep 15, 2026 - 11:34 vuln.today
CVE Published
Sep 15, 2026 - 11:00 cve.org
HIGH 8.7

DescriptionCVE.org

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.

AnalysisAI

Server-side template injection in Polyaxon through 2.16.4 lets any user who can submit a run execute arbitrary operating-system commands in the scheduler process by embedding Jinja2 payloads in spec fields such as queue, namespace, conditions, presets, or dependencies. Because the scheduler renders those fields with an unsandboxed Jinja2 environment, a low-privileged authenticated tenant can reach database credentials and service tokens held by the scheduler, turning a normal ML experiment submission into host-level code execution (CWE-1336, CVSS 4.0 base 8.7). …

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EUVD-2026-78416 vulnerability details – vuln.today

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