# IntelliJ IDEA Ultimate Edition security updates

The latest version of IntelliJ IDEA Ultimate Edition is 2026.2.3, released September 16, 2026. Patch Radar has 17 security fixes for IntelliJ IDEA Ultimate Edition, closing 61 CVEs. The newest security fix is IntelliJ IDEA Ultimate Edition 2026.2.3, released September 16, 2026. 23 CVEs have no fix yet.

- Web page: https://patchblox.com/security/product/windows-app/intellij-idea-ultimate-edition
- Platform: Windows apps
- Vendor: JetBrains
- Latest version: 2026.2.3 (Sep 16, 2026)
- Supported: yes

## CVEs with no fix yet

| CVE | Priority | Title | Status |
|---|---|---|---|
| [CVE-2026-118697](https://patchblox.com/security/data/cve/CVE-2026-118697.md) | Urgent | WebStorm and 11 others: Improper Certificate Validation | no-fix |
| [CVE-2026-118696](https://patchblox.com/security/data/cve/CVE-2026-118696.md) | High | WebStorm and 12 others: Improper Check for Certificate Revocation | no-fix |
| [CVE-2026-123301](https://patchblox.com/security/data/cve/CVE-2026-123301.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 dOM-based XSS in the OpenAPI preview error view was possible | no-fix |
| [CVE-2026-123304](https://patchblox.com/security/data/cve/CVE-2026-123304.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 code execution in untrusted projects via a configured ShellCheck… | no-fix |
| [CVE-2026-123305](https://patchblox.com/security/data/cve/CVE-2026-123305.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 path traversal was possible via unpacking Dev Container archives… | no-fix |
| [CVE-2026-123306](https://patchblox.com/security/data/cve/CVE-2026-123306.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 improper checks allowed server certificates to be added to the… | no-fix |
| [CVE-2026-123838](https://patchblox.com/security/data/cve/CVE-2026-123838.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 code execution was possible in Safe Mode via UI Designer form… | no-fix |
| [CVE-2026-123841](https://patchblox.com/security/data/cve/CVE-2026-123841.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via symlinks in an imported settings… | no-fix |
| [CVE-2026-123842](https://patchblox.com/security/data/cve/CVE-2026-123842.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 arbitrary file write was possible via symlinks when extracting… | no-fix |
| [CVE-2026-123848](https://patchblox.com/security/data/cve/CVE-2026-123848.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 host name verification was missing for server TLS certificates | no-fix |
| [CVE-2026-123849](https://patchblox.com/security/data/cve/CVE-2026-123849.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 code execution was possible in untrusted projects via the Terraform… | no-fix |
| [CVE-2026-123278](https://patchblox.com/security/data/cve/CVE-2026-123278.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 code execution was possible via the unauthenticated JDBC worker… | no-fix |
| [CVE-2026-123308](https://patchblox.com/security/data/cve/CVE-2026-123308.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 code execution via the document import was possible in untrusted… | no-fix |
| [CVE-2026-123310](https://patchblox.com/security/data/cve/CVE-2026-123310.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 kotlin scripts could trigger dependency downloads from arbitrary… | no-fix |
| [CVE-2026-123313](https://patchblox.com/security/data/cve/CVE-2026-123313.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 improper checks could enable disabled plugins via external dependency… | no-fix |
| [CVE-2026-123833](https://patchblox.com/security/data/cve/CVE-2026-123833.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 database connections could be established in untrusted projects | no-fix |
| [CVE-2026-123839](https://patchblox.com/security/data/cve/CVE-2026-123839.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 opening arbitrary URLs without confirmation was possible via… | no-fix |
| [CVE-2026-123840](https://patchblox.com/security/data/cve/CVE-2026-123840.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 hTML injection was possible in Remote Development editor tabs | no-fix |
| [CVE-2026-123843](https://patchblox.com/security/data/cve/CVE-2026-123843.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 untrusted projects could trigger changes to GPG agent configuration | no-fix |
| [CVE-2026-123844](https://patchblox.com/security/data/cve/CVE-2026-123844.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 sSRF was possible via custom plugin repositories | no-fix |
| [CVE-2026-123845](https://patchblox.com/security/data/cve/CVE-2026-123845.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 path traversal was possible via JSON Schema references in untrusted… | no-fix |
| [CVE-2026-123846](https://patchblox.com/security/data/cve/CVE-2026-123846.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 blind SSRF was possible via remote references in JSON Schema… | no-fix |
| [CVE-2026-123847](https://patchblox.com/security/data/cve/CVE-2026-123847.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.3 command execution was possible via control characters in terminal… | no-fix |

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [IntelliJ IDEA Ultimate Edition 2026.2.3](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2026.2.3.md) | Sep 16, 2026 | 2026.2.3 | Urgent | 25 | 0 |
| [IntelliJ IDEA Ultimate Edition 2025.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2025.2.md) | Aug 4, 2025 | 2025.2 | High | 4 | 0 |
| [IntelliJ IDEA Ultimate Edition 2024.3](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2024.3.md) | Nov 12, 2024 | 2024.3 | Routine | 1 | 0 |
| [IntelliJ IDEA Ultimate Edition 2024.1.3](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2024.1.3.md) | Jun 10, 2024 | 2024.1.3 | High | 1 | 0 |
| [IntelliJ IDEA Ultimate Edition 2024.1](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2024.1.md) | Apr 4, 2024 | 2024.1 | Urgent | 4 | 0 |
| [IntelliJ IDEA Ultimate Edition 2023.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2023.2.md) | Jul 26, 2023 | 2023.2 | High | 1 | 0 |
| [IntelliJ IDEA Ultimate Edition 2023.1.4](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2023.1.4.md) | Jul 12, 2023 | 2023.1.4 | Routine | 1 | 0 |
| [IntelliJ IDEA Ultimate Edition 2023.1](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2023.1.md) | Mar 28, 2023 | 2023.1 | High | 4 | 0 |
| [IntelliJ IDEA Ultimate Edition 2022.3.1](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2022.3.1.md) | Dec 20, 2022 | 2022.3.1 | High | 2 | 0 |
| [IntelliJ IDEA Ultimate Edition 2022.3](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2022.3.md) | Nov 30, 2022 | 2022.3 | Routine | 3 | 0 |
| [IntelliJ IDEA Ultimate Edition 2022.2.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2022.2.2.md) | Sep 14, 2022 | 2022.2.2 | High | 1 | 0 |
| [IntelliJ IDEA Ultimate Edition 2022.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2022.2.md) | Jul 26, 2022 | 2022.2 | High | 2 | 0 |
| [IntelliJ IDEA Ultimate Edition 2022.1](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2022.1.md) | Apr 12, 2022 | 2022.1 | High | 8 | 0 |
| [IntelliJ IDEA Ultimate Edition 2021.3.3](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2021.3.3.md) | Mar 15, 2022 | 2021.3.3 | Routine | 1 | 0 |
| [IntelliJ IDEA Ultimate Edition 2021.3.2](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2021.3.2.md) | Jan 27, 2022 | 2021.3.2 | Urgent | 1 | 0 |
| [IntelliJ IDEA Ultimate Edition 2021.3.1](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2021.3.1.md) | Dec 28, 2021 | 2021.3.1 | High | 1 | 0 |
| [IntelliJ IDEA Ultimate Edition 2021.3](https://patchblox.com/security/data/fix/windows-app/jetbrains.intellijidea.ultimate-2021.3.md) | Nov 27, 2021 | 2021.3 | High | 1 | 0 |

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Data as of 2026-11-12T01:51:14Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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