In JetBrains IntelliJ IDEA before 2026.3 sSRF was possible via custom plugin repositories

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Jetbrains Subscribe
Intellij Idea Subscribe

No data.

No data.

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Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.jetbrains.com/privacy-security/issues-fixed/ cve-icon cve-icon
History

Fri, 06 Nov 2026 18:00:00 +0000

Type Values Removed Values Added
Title Server‑Side Request Forgery via Custom Plugin Repositories in JetBrains IntelliJ IDEA 2026.2 and Earlier
First Time appeared Jetbrains
Jetbrains intellij Idea
Vendors & Products Jetbrains
Jetbrains intellij Idea

Fri, 06 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
Description In JetBrains IntelliJ IDEA before 2026.3 sSRF was possible via custom plugin repositories
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: JetBrains

Published:

Updated: 2026-11-06T16:48:22.035Z

Reserved: 2026-11-06T16:05:44.540Z

Link: CVE-2026-123844

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T17:17:23.130

Modified: 2026-11-06T17:17:23.130

Link: CVE-2026-123844

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T17:45:06Z

Weaknesses