CVE-2026-86503

SSRF via Kubernetes Spec-source URL in Untrusted IntelliJ Projects

Published Sep 7, 2026 CVSS 3.1 · 3.3 Low EPSS < 1% KEV · Not listed
Description
In JetBrains IntelliJ IDEA before 2026.2.2 opening an untrusted project could trigger SSRF via Kubernetes spec-source URL fetching

Analysis

AI-generated

Technical impact

An untrusted project file can cause JetBrains IntelliJ IDEA to fetch a Kubernetes spec-source URL, resulting in a server-side request forgery that may expose internal network resources or sensitive data. The weakness is identified as CWE‑918: Server-side Request Forgery. The impact is limited to information disclosure and potential internal resource exploitation rather than immediate remote code execution.

Affected Systems

JetBrains IntelliJ IDEA versions prior to 2026.2.2 are vulnerable. Users running these versions should note that any untrusted project opened during the development session can trigger the SSRF behavior.

Risk and Exploitability

The CVSS score of 3.3 indicates low overall severity. Because the EPSS score is not available and the vulnerability is not listed in the CISA KEV catalog, the likelihood of widespread exploitation is currently low; however, the vulnerability can be triggered by an attacker who can supply a malicious project file. The attack vector is inferred to be local (within the user’s development environment) or via social engineering of a teammate.

Remediation

No solution or workaround provided in the CVE record.

OpenCVE Recommended Actions

  • Upgrade IntelliJ IDEA to version 2026.2.2 or later to receive the fix for SSRF via Kubernetes spec-source URL fetching.
  • If an immediate upgrade is not possible, isolate the development machine from internal network resources that could be accessed through speculative URLs and monitor outbound traffic for unexpected requests.
  • Review and restrict any automated project imports or repository hooks that may introduce untrusted project files, ensuring that only verified code is loaded into the IDE.

Generated by OpenCVE AI on September 7, 2026 at 17:37 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:jetbrains:intellij_idea:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Title SSRF via Kubernetes Spec-source URL in Untrusted IntelliJ Projects
First Time appeared Jetbrains
Jetbrains intellij Idea
Vendors & Products Jetbrains
Jetbrains intellij Idea
Type Values Removed Values Added
Description In JetBrains IntelliJ IDEA before 2026.2.2 opening an untrusted project could trigger SSRF via Kubernetes spec-source URL fetching
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 3.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N'}

Weaknesses
  • CWE-918

    Server-Side Request Forgery (SSRF)

Sources

Status
PUBLISHED
Assigner
JetBrains
Published
Updated
Sep 8, 2026, 10:35 AM
Reserved
Sep 7, 2026, 4:13 PM
Status
Analyzed
Published
Sep 7, 2026, 5:17 PM
Modified
Nov 12, 2026, 2:41 PM