# IntelliJ IDEA Ultimate Edition 2026.2.3 IntelliJ IDEA Ultimate Edition 2026.2.3, released September 16, 2026, fixes 25 CVEs in IntelliJ IDEA Ultimate Edition. None of them is reported as exploited. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/fix/windows-app/jetbrains.intellijidea.ultimate-2026.2.3 - Platform: Windows apps - Released: Sep 16, 2026 - Priority: Urgent (Closes CVE-2026-59792, rated Critical) - CVEs: 25, exploited: 0, on CISA KEV: 0 ## Applies to | Product | Release | Fixed in | |---|---|---| | [IntelliJ IDEA Ultimate Edition](https://patchblox.com/security/data/product/windows-app/intellij-idea-ultimate-edition.md) | | 2026.2.3 | ## CVEs this fix closes | CVE | Priority | Title | CVSS | EPSS | Exploitation | |---|---|---|---:|---:|---| | [CVE-2026-59792](https://patchblox.com/security/data/cve/CVE-2026-59792.md) | Urgent | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.1.4, 2026.2 code execution via path traversal in project workspace… | 9.8 | 0.0061 | | | [CVE-2026-64813](https://patchblox.com/security/data/cve/CVE-2026-64813.md) | Urgent | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2 unauthorized settings modification was possible in a Remote… | 10.0 | 0.0052 | | | [CVE-2026-64812](https://patchblox.com/security/data/cve/CVE-2026-64812.md) | Urgent | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2 unauthorized input injection was possible in a Remote Development… | 10.0 | 0.0048 | | | [CVE-2026-64815](https://patchblox.com/security/data/cve/CVE-2026-64815.md) | Urgent | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2 arbitrary code injection was possible via UI Designer form files | 9.8 | 0.0048 | | | [CVE-2026-49366](https://patchblox.com/security/data/cve/CVE-2026-49366.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.1.1 command injection was possible via filename completion | 7.8 | 0.0046 | | | [CVE-2026-64814](https://patchblox.com/security/data/cve/CVE-2026-64814.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2 unauthorized file access was possible in a Remote Development… | 8.6 | 0.0039 | | | [CVE-2026-49367](https://patchblox.com/security/data/cve/CVE-2026-49367.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.1.1 command execution was possible via the guest user account | 8.8 | 0.0033 | | | [CVE-2026-86502](https://patchblox.com/security/data/cve/CVE-2026-86502.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.2 missing TLS and authentication on the IJent gRPC server allowed… | 8.4 | 0.0021 | | | [CVE-2026-75056](https://patchblox.com/security/data/cve/CVE-2026-75056.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.1 rCE via Markdown export tool was possible | 7.8 | 0.0019 | | | [CVE-2026-64811](https://patchblox.com/security/data/cve/CVE-2026-64811.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2 arbitrary code execution was possible before granting project… | 7.8 | 0.0019 | | | [CVE-2026-86504](https://patchblox.com/security/data/cve/CVE-2026-86504.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.2 missing project-trust confirmation before building a Dev Container… | 7.8 | 0.0019 | | | [CVE-2026-49382](https://patchblox.com/security/data/cve/CVE-2026-49382.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.1 code execution was possible via template injection in the Copyright… | 7.8 | 0.0014 | | | [CVE-2026-100256](https://patchblox.com/security/data/cve/CVE-2026-100256.md) | High | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.3 rCE via Structural Search script constraints was possible… | 7.8 | 0.0013 | | | [CVE-2026-86501](https://patchblox.com/security/data/cve/CVE-2026-86501.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.2 terminal command input could be written to idea.log | 2.8 | 0.0039 | | | [CVE-2026-64810](https://patchblox.com/security/data/cve/CVE-2026-64810.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2 hTML injection was possible in an IDE notification, allowing… | 6.1 | 0.0025 | | | [CVE-2026-75053](https://patchblox.com/security/data/cve/CVE-2026-75053.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.1 sSRF was possible via the DevKit debug listener endpoint | 5.4 | 0.0024 | | | [CVE-2026-75052](https://patchblox.com/security/data/cve/CVE-2026-75052.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.1 command execution via crafted Markdown preview content was… | 4.4 | 0.0018 | | | [CVE-2026-75057](https://patchblox.com/security/data/cve/CVE-2026-75057.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.1.5 git credentials were written in plaintext to the IDE log | 6.2 | 0.0017 | | | [CVE-2026-75054](https://patchblox.com/security/data/cve/CVE-2026-75054.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.1 sSRF was possible via the OpenAPI preview proxy in untrusted… | 6.3 | 0.0015 | | | [CVE-2026-75055](https://patchblox.com/security/data/cve/CVE-2026-75055.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.1 hadoop ResourceManager could read local files via XXE | 5.5 | 0.0015 | | | [CVE-2026-75058](https://patchblox.com/security/data/cve/CVE-2026-75058.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.1 xXE was possible in the Eclipse settings importers | 5.5 | 0.0015 | | | [CVE-2026-86505](https://patchblox.com/security/data/cve/CVE-2026-86505.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.2 missing project-trust check leaked project metadata to JetBrains… | 3.3 | 0.0015 | | | [CVE-2026-86503](https://patchblox.com/security/data/cve/CVE-2026-86503.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.2.2 opening an untrusted project could trigger SSRF via Kubernetes… | 3.3 | 0.0015 | | | [CVE-2026-49383](https://patchblox.com/security/data/cve/CVE-2026-49383.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2026.1 xXE in the UI Designer form parser was possible | 3.3 | 0.0011 | | | [CVE-2025-68269](https://patchblox.com/security/data/cve/CVE-2025-68269.md) | Routine | IntelliJ IDEA Ultimate Edition and 1 other: In JetBrains IntelliJ IDEA before 2025.3 missing confirmation allowed opening of untrusted remote projects… | 5.4 | 0.0011 | | --- Data as of 2026-11-12T13:55:20Z UTC. 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