high7.8
CVE-2026-12958
Missing symlink validation in Language Servers for AWS may allow an arbitrary file write outside of the workspace trust boundary.
Impact
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 packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @aws/lsp-codewhisperer | < 0.0.117 | 0.0.117 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-6v3r-4p5c-mrp5
- https://github.com/aws/language-servers/security/advisories/GHSA-6v3r-4p5c-mrp5
- https://nvd.nist.gov/vuln/detail/CVE-2026-12958
- https://github.com/Amazon-Q-Developer/language-servers/pull/2742
- https://github.com/Amazon-Q-Developer/language-servers/commit/6c279b083cc192aa5df1f38c2c185576fd5234f5
- https://aws.amazon.com/security/security-bulletins/2026-047-aws
- https://github.com/Amazon-Q-Developer/language-servers/releases/tag/agentic-rc-1.69.0
- https://github.com/Amazon-Q-Developer/language-servers/releases/tag/lsp-codewhisperer/v0.0.117
- https://aws.amazon.com/security/security-bulletins/2026-047-aws/