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

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.

The EPSS score is 0.00273.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
JetBrains IntelliJ IDEA unaffected
Version Status Constraints
0 affected < 2026.3

Configuration 1 [-]

cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*

No data.

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Vendors Products
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Project Subscriptions

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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

Tue, 10 Nov 2026 20:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*

Sat, 07 Nov 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

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

Updated: 2026-11-06T16:48:15.803Z

cve-icon NVD

Status : Analyzed

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

Modified: 2026-11-10T20:09:55.140

Link: CVE-2026-123844

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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

Weaknesses