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CVE-2026-64813 is a critical vulnerability in JetBrains IntelliJ IDEA affecting versions before 2026.2. In Remote Development sessions, the flaw allows unauthorized modification of IDE settings. Available reporting indicates the issue is associated with missing authentication and unsafe defaults in the Remote Development context. The vulnerability is classified as CWE-602 and has been assigned a CVSS v3.1 vector of AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H, indicating that it is remotely exploitable without privileges or user interaction and can have broad downstream impact on the remote development environment.
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No public exploit code observed for this vulnerability.
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A critical flaw in JetBrains IntelliJ IDEA Remote Development sessions that allows unauthorized settings changes due to missing authentication and unsafe defaults.
An unauthorized settings modification vulnerability in JetBrains IntelliJ IDEA affecting Remote Development sessions before version 2026.2.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.