CVE-2026-49367Network attack vector

Authenticated command execution through guest account

Published May 29, 2026 · Updated May 29, 2026

Command execution in JetBrains IntelliJ IDEA before 2026.1.1 allows remote authenticated users to run commands through a guest account. JetBrains identifies missing authorization but has not disclosed the affected component or the failed check that lets guest actions reach command execution. A guest account and user interaction are required, and exploitation grants command execution beyond the guest account's intended authority.

CVSS severity8.0
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command execution in JetBrains IntelliJ IDEA before 2026.1.1 allows remote authenticated users to run commands through a guest account. JetBrains identifies missing authorization but has not disclosed the affected component or the failed check that lets guest actions reach command execution. A guest account and user interaction are required, and exploitation grants command execution beyond the guest account's intended authority.

The record

CVE
CVE-2026-49367
Published
May 29, 2026
Updated
May 29, 2026
Vendor
JetBrains
Product
IntelliJ IDEA
Classifications
CWE-862, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 29, 2026CVE publishedPublication date reported by the CVE source.
  2. May 29, 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 <2026.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

JetBrains · IntelliJ IDEAversion=0 <2026.1.1

Published CVSS scores

8.0JetBrainsCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1059Command and Scripting Interpreter

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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