How severe is CVE-2026-49383?

CVE-2026-49383 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-49383 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-49383?

CVE-2026-49383 affects Jetbrains Intellij Idea. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-49383?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-49383 have an EU (EUVD) identifier?

Yes. CVE-2026-49383 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33391.

When was CVE-2026-49383 published?

CVE-2026-49383 was published on 2026-05-29 and last updated on 2026-06-17.

CVE-2026-49383

CVE-2026-49383 is a low-severity vulnerability in Jetbrains Intellij Idea with a CVSS 3.x base score of 3.3. 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-611.

Key facts

Severity: Low (CVSS 3.x base score 3.3)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33391
Weakness: CWE-611
Affected product: Jetbrains Intellij Idea
Published: 2026-05-29
Last modified: 2026-06-17

Description

In JetBrains IntelliJ IDEA before 2026.1 xXE in the UI Designer form parser was possible

Frequently asked questions

What is CVE-2026-49383?: In JetBrains IntelliJ IDEA before 2026.1 xXE in the UI Designer form parser was possible
How severe is CVE-2026-49383?: CVE-2026-49383 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-49383 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-49383?: CVE-2026-49383 affects Jetbrains Intellij Idea. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-49383?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-49383 have an EU (EUVD) identifier?: Yes. CVE-2026-49383 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33391.
When was CVE-2026-49383 published?: CVE-2026-49383 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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