How severe is CVE-2026-49366?

CVE-2026-49366 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-49366 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-49366?

CVE-2026-49366 affects Jetbrains Intellij Idea. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-49366?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-49366 have an EU (EUVD) identifier?

Yes. CVE-2026-49366 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33414.

When was CVE-2026-49366 published?

CVE-2026-49366 was published on 2026-05-29 and last updated on 2026-06-17.

CVE-2026-49366

CVE-2026-49366 is a high-severity vulnerability in Jetbrains Intellij Idea with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 7.8)
EPSS exploit prediction: 0% (36th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33414
Weakness: CWE-78
Affected product: Jetbrains Intellij Idea
Published: 2026-05-29
Last modified: 2026-06-17

Description

In JetBrains IntelliJ IDEA before 2026.1.1 command injection was possible via filename completion

Frequently asked questions

What is CVE-2026-49366?: In JetBrains IntelliJ IDEA before 2026.1.1 command injection was possible via filename completion
How severe is CVE-2026-49366?: CVE-2026-49366 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-49366 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (36th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-49366?: CVE-2026-49366 affects Jetbrains Intellij Idea. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-49366?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-49366 have an EU (EUVD) identifier?: Yes. CVE-2026-49366 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33414.
When was CVE-2026-49366 published?: CVE-2026-49366 was published on 2026-05-29 and last updated on 2026-06-17.

References

https://www.jetbrains.com/privacy-security/issues-fixed/

Affected products (1)

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

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