vulnerability · Mon 07 Sep 2026 · 23:16 UTC
CVE-2026-86540: knowns versions before 0.30.0 fail to validate the settings.lsp.languages binary field in
Filed UTCSource GTH ↗
knowns versions before 0.30.0 fail to validate the settings.lsp.languages binary field in project configuration files, allowing attackers to execute arbitrary binaries by crafting a malicious .knowns/config.json file. When a repository with a crafted configuration is opened, the unvalidated binary path is executed twice under the user's account without any verification.
Signals
as the pipeline stamped them- High
- High-risk vulnerability — CVSS 7.8
CVE
KEV from CISA · EPSS from FIRST| Id | KEV | EPSS | Reference |
|---|---|---|---|
| CVE-2026-86540 | — | 0.21% | NVD ↗ |
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