CVE-2026-123842
HIGHCVSS 7.1/10
Last modified
CVE-2026-123842 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. In JetBrains IntelliJ IDEA before 2026.3 arbitrary file write was possible via symlinks when extracting plugin archives.
Description
In JetBrains IntelliJ IDEA before 2026.3 arbitrary file write was possible via symlinks when extracting plugin archives
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| JetBrains | IntelliJ IDEA | < 2026.3 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-123842?
In JetBrains IntelliJ IDEA before 2026.3 arbitrary file write was possible via symlinks when extracting plugin archives
How severe is CVE-2026-123842?
CVE-2026-123842 has a CVSS score of 7.1/10 (HIGH severity).
How do I fix CVE-2026-123842?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
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- CVE-2026-123838In JetBrains IntelliJ IDEA before 2026.3 code execution was …7.8
- CVE-2026-123839In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary U…4.7
- CVE-2026-12384Authorization bypass through User-Controlled key vulnerabili…8.8
- CVE-2026-123840In JetBrains IntelliJ IDEA before 2026.3 hTML injection was …4.7
- CVE-2026-123841In JetBrains IntelliJ IDEA before 2026.3 code execution was …7.8
- CVE-2026-123843In JetBrains IntelliJ IDEA before 2026.3 untrusted projects …3.3
- CVE-2026-123844In JetBrains IntelliJ IDEA before 2026.3 sSRF was possible v…5.3
- CVE-2026-123845In JetBrains IntelliJ IDEA before 2026.3 path traversal was …3.3
- CVE-2026-123846In JetBrains IntelliJ IDEA before 2026.3 blind SSRF was poss…4.3
- CVE-2026-123847In JetBrains IntelliJ IDEA before 2026.3 command execution w…5.3
- CVE-2026-123848In JetBrains IntelliJ IDEA before 2026.3 host name verificat…7.4
Are you affected by CVE-2026-123842?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST