CVE-2026-123839

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 59/100
Published: 2026-11-06 Modified: 2026-11-10 First seen: 2026-11-06 Status: active

Attack Surface

Network Low Complexity No Auth Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: Required
S: Changed
C: None
I: Low
A: None

Description

In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary URLs without confirmation was possible via the Remote Development port forwarding model

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
JetBrains IntelliJ IDEA 0 < 2026.3
JetBrains IntelliJ IDEA 0 < 2026.3
jetbrains intellij_idea < 2026.3

Bug Bounty Relevance

59 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity

CVSS Score

4.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

EPSS — Exploitation Probability

0.25%
Raw Score 0.002540
Percentile 17.0%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00254
2026-11-12
0.00254
2026-11-10
0.00254
2026-11-09
0.00254
2026-11-08
0.00254
2026-11-07
0.00254

Intelligence Sources

mitre ref →
nvd ref →