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CVE-2026-49367

HIGH 8

Published 2026-05-29 · Last modified 2026-05-30

In JetBrains IntelliJ IDEA before 2026.1.1 command execution was possible via the guest user account

ELEVATED IMPACT

Severe if exploited (CVSS 8), but no known exploitation and low modeled probability. Patch on a normal cadence.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 25th percentile

○ In CISA KEV ○ Public exploit / PoC

Impact if exploited

8CVSS 3.1 · HIGH

  • ConfidentialityHigh
  • IntegrityHigh
  • AvailabilityHigh

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ⚠Privileges: Requires a low-privilege account
  • ⚠User interaction: A user must take an action (click / open a file)
  • ✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Affected

Vendors Jetbrains

Products Intellij Idea

Weakness (CWE)

  • CWE-862: Missing authorization

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

References

Technical & other

Sources: NVD · CVE.org · EPSS