CVE-2026-12958

Arbitrary file write in Language Servers for AWS

State: Published
Severity: 8.5 High
Published: Jun 23, 2026
Updated: Jun 23, 2026
Reserved: Jun 23, 2026

Description

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 path outside the workspace trust boundary.

To remediate this issue, users should upgrade to version 1.69.0 or higher.

Scores

CVSS	Score	Vector	Source
4.0	8.5 High	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	AMZN
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	AMZN

Weaknesses

CWE-61 UNIX symbolic link (symlink) following

Affected Products

Product	Versions
Language Servers for AWSAmazon Web Services	before 1.69.0Affected

References

https://aws.amazon.com/security/security-bulletins/2026-047-aws/vendor-advisory
https://github.com/aws/language-servers/security/advisories/GHSA-6v3r-4p5c-mrp5third-party-advisory

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.