CVE-2026-33392Network attack vector

Administrator-level code execution via sandbox bypass

Published Apr 17, 2026 · Updated Apr 17, 2026

Sandbox bypass in JetBrains YouTrack before 2025.3.131383 allows remote authenticated users with high privileges to execute arbitrary code. JetBrains maps the flaw to template-engine neutralization but has not disclosed the affected template locus or how crafted input escapes the sandbox. Exploitation requires administrator-level permissions; on Server, the bounded consequence is code execution within the single-tenant owner's environment.

CVSS severity7.2
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sandbox bypass in JetBrains YouTrack before 2025.3.131383 allows remote authenticated users with high privileges to execute arbitrary code. JetBrains maps the flaw to template-engine neutralization but has not disclosed the affected template locus or how crafted input escapes the sandbox. Exploitation requires administrator-level permissions; on Server, the bounded consequence is code execution within the single-tenant owner's environment.

The record

CVE
CVE-2026-33392
Published
Apr 17, 2026
Updated
Apr 17, 2026
Vendor
JetBrains
Product
YouTrack
Classifications
CWE-1336
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 17, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2025.3.131383

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

JetBrains · YouTrackversion=0 <2025.3.131383

Published CVSS scores

7.2JetBrains s.r.o.CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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