CVE-2026-12957

HIGH

CVSS v3.1: 7.8

No privilegesIncorrect PermissionsVendor advisory ref

Source data as of:

At a glance

Severity
HIGH
CVSS
7.8 v3.1 · NVD
EPSS
EPSS not provided by FIRST.org for this CVE
CISA KEV
No
Type
Incorrect Permissions · NVD CWE
Attack conditions (CVSS vector)
No privileges · Source: NVD Vector
Published
2026-06-23 · Modified: 2026-06-23

CVSS / EPSS / KEV

CVSS v3.1 7.8 / 10 HIGH Source: NVD
CVSS v4.0 8.5 / 10 HIGH Source: NVD
EPSS EPSS not provided by FIRST.org for this CVE Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

Description

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.

Record details

CVE ID
CVE-2026-12957
CVSS (v3.1)
7.8 (HIGH)
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability subscore
1.8
Impact subscore
5.9
CISA KEV
No
Weakness (CWE)
CWE-732
Affected configurations (CPE)
0
Published
2026-06-23
Modified
2026-06-23
Status
Awaiting Analysis

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.