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Ssti EUVD-2026-23386

| CVE-2026-33392 HIGH
Improper Neutralization of Special Elements Used in a Template Engine (CWE-1336)
2026-04-17 JetBrains
7.2
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

7
Patch released
Apr 20, 2026 - 20:18 nvd
Patch available
Re-analysis Queued
Apr 17, 2026 - 15:22 vuln.today
cvss_changed
Patch available
Apr 17, 2026 - 09:01 EUVD
Analysis Generated
Apr 17, 2026 - 08:22 vuln.today
EUVD ID Assigned
Apr 17, 2026 - 08:15 euvd
EUVD-2026-23386
Analysis Generated
Apr 17, 2026 - 08:15 vuln.today
CVE Published
Apr 17, 2026 - 07:46 nvd
HIGH 7.2

DescriptionNVD

In JetBrains YouTrack before 2025.3.131383 high privileged user can achieve RCE via sandbox bypass

AnalysisAI

Sandbox escape in JetBrains YouTrack before 2025.3.131383 allows high-privileged users to execute arbitrary code on the server. The vulnerability affects all YouTrack versions prior to 2025.3.131383 and is classified as both an authentication bypass and server-side template injection (SSTI). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
Compromise admin credentials
Delivery
Authenticate to YouTrack
Exploit
Access template/workflow editor
Install
Inject SSTI payload
C2
Bypass sandbox restrictions
Execute
Execute arbitrary code
Impact
Achieve full system compromise

Vulnerability AssessmentAI

Exploitation Requires valid credentials for a high-privileged YouTrack user account with administrative permissions (PR:H in CVSS vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment Real-world risk is moderate despite the 7.2 CVSS score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who has compromised an administrative account (through credential theft, social engineering, or prior system compromise) authenticates to the YouTrack web interface. They navigate to workflow customization, custom field configuration, or issue template editing features and inject malicious template directives that escape the security sandbox. …
Remediation Upgrade JetBrains YouTrack to version 2025.3.131383 or later, which contains the vendor-released patch for this sandbox bypass vulnerability. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: identify all YouTrack instances and document current versions; restrict administrative access to YouTrack to essential personnel only and enforce multi-factor authentication on all admin accounts. …

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EUVD-2026-23386 vulnerability details – vuln.today

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