CVE-2026-86540
CVE-2026-86540 · knowns before 0.30.0 Arbitrary Code Execution via LSP Binary
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
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.
CVSS 8.5 · Élevée · EPSS 0,2% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: node
Produits et versions concernés
Sources originales
- https://github.com/knowns-dev/knowns/security/advisories/GHSA-mc52-mwq4-vfx3
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/lsp/detect.go#L128-L157
- https://github.com/knowns-dev/knowns/blob/v0.29.1/internal/models/config.go#L205-L216
- https://github.com/knowns-dev/knowns/commit/d3989829fb5095666d23d005b2f78a082832a396
- https://github.com/knowns-dev/knowns/releases/tag/v0.30.0
- https://www.vulncheck.com/advisories/knowns-before-0.30.0-arbitrary-code-execution-via-lsp-binary
- https://nvd.nist.gov/vuln/detail/CVE-2026-86540