CVE-2026-12957

Arbitrary Code Execution in Language Servers for AWS

CVSS 8.5 HIGHEPSS 0.1%CWE-732

Vexday Risk Score

21Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 8.5EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

23 jun 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

Improper trust boundary enforcement in Language Servers for AWS before version 1.65.0 on all supported platforms may allow a for arbitrary code execution. If a local user opens a maliciously crafted workspace, any commands within the project configuration files may be automatically executed. This issue requires the user to trust the workspace when prompted. To remediate this issue, users should upgrade to Language Servers for AWS version 1.65.0 or higher.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Productos afectados

Amazon Web Services · Language Servers for AWS

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Referencias

https://aws.amazon.com/security/security-bulletins/2026-047-aws/https://github.com/aws/language-servers/security/advisories/GHSA-xhcr-j4j9-3gh7