# CVE-2026-12958: Arbitrary file write in Language Servers for AWS

> CVE-2026-12958: Arbitrary file write in Language Servers for AWS. CVSS 7.8 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2026-12958
Last updated: 2026-06-23T19:36:18Z

- Published: 2026-06-23 16:03 UTC · Updated: 2026-06-23 19:36 UTC · Assigner: AMZN
- CVSS: 7.8 (CVSS 3.1) · Severity: High · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS: 0.19%, 9th percentile (scored 2026-10-25)
- CISA KEV: no
- CWE: CWE-61

## 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.

## Affected vendors and products

- Amazon Web Services: Language Servers for AWS

## Tracked companies

- [Amazon Web Services](https://rewindex.com/company/aws.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2026-12958)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2026-12958)
- [https://aws.amazon.com/security/security-bulletins/2026-047-aws/](https://aws.amazon.com/security/security-bulletins/2026-047-aws/)
- [https://github.com/aws/language-servers/security/advisories/GHSA-6v3r-4p5c-mrp5](https://github.com/aws/language-servers/security/advisories/GHSA-6v3r-4p5c-mrp5)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2026-12958 · Markdown: https://rewindex.com/cve/CVE-2026-12958.md · JSON: https://rewindex.com/api/v1/cves/CVE-2026-12958 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:44.032Z