Language Servers for AWS vulnerable to arbitrary file write
## Summary Language Servers for AWS (the aws/language-servers project) provides the Language Server Protocol implementations that power AWS developer tooling, including the Amazon Q Developer agentic chat experience, across IDEs such as VS Code, JetBrains, Visual Studio, and Eclipse. 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 containing a maliciously crafted symlink that resolves to a file path outside the workspace trust boundary. ## Impact If a user opens a maliciously crafted workspace containing a symlink that resides within the workspace but resolves to a location outside the workspace trust boundary, the agent may follow that symlink and write to the external location without prompting the user for approval. This can result in the modification of files outside the intended workspace boundary. This issue is triggered when a user opens a workspace, trusts it, and the agent subsequently writes to a path within that workspace. Impacted versions: Language Servers for AWS version <1.69.0. ## Patches This issue has been addressed in AWS Language Servers version 1.69.0. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes. ## Workarounds No workarounds are available. ## References If you have any questions or comments about this advisory, AWS Security ask that you cont
GHSA-6v3r-4p5c-mrp5
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:GHSA-6v3r-4p5c-mrp5
@aws/lsp-codewhisperer
Source reference: /affected/0/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 0.0.117
Source reference:
/affected/0/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "SEMVER",
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.117"
}
]
}
],
"package": {
"name": "@aws/lsp-codewhisperer",
"purl": "pkg:npm/%40aws/lsp-codewhisperer",
"ecosystem": "npm"
},
"database_specific": {
"source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-6v3r-4p5c-mrp5/GHSA-6v3r-4p5c-mrp5.json"
}
}
]- Related CVEs
- CVE-2026-12958
Source reference:
/aliases
Publisher severity
high
Source reference: /database_specific/severity
- Event
- #14225 · Revision 1
- Added to Heist Feed
- Publisher date