What is CVE-2026-12958?

CVE-2026-12958 is a high-severity vulnerability in Amazon Web Services Language Servers For Aws, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 7.8/10. Published 2026-06-23.

How severe is CVE-2026-12958?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Amazon Web Services Language Servers For Aws

CVE-2026-12958

Missing symlink validation in Language Servers for AWS may allow an arbitrary file write outside of the workspace trust boundary. This may occur when a local user opens a workspace with a maliciously crafted symlink that resolves to a file…

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Amazon Web Services Language Servers For Aws — versions 0

Weakness classification (CWE)

CWE-61 — UNIX Symbolic Link (Symlink) Following

References

ff89ba41-3aa1-4d27-914a-91399e9639e5 (vendor-advisory)
ff89ba41-3aa1-4d27-914a-91399e9639e5 (third-party-advisory)

Frequently asked questions

What is CVE-2026-12958?: CVE-2026-12958 is a high-severity vulnerability in Amazon Web Services Language Servers For Aws, classified under UNIX Symbolic Link (Symlink) Following. CVSS score: 7.8/10. Published 2026-06-23.
How severe is CVE-2026-12958?: High severity. CVSS v3 base score is 7.8 out of 10.