CVE-2026-12957: Arbitrary Code Execution in Language Servers for AWS
Amazon Web Services · Language Servers for AWS
Fixed in 1.65.0 · Affected: Amazon Web Services Language Servers for AWS before 1.65.0 · Exploitation: not established
ExploitationNot established
Not in CISA KEV as of catalogue 2026.11.13 (13 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not establishedNothing in the sources we check
Higher than 14% of scored CVEs
DescriptionNVD
Improper trust boundary enforcement in Language Servers for AWS before version 1.65.0 on all supported platforms may allow a for arbitrary code execution. If a local user opens a maliciously crafted workspace, any commands within the project configuration files may be automatically executed. This issue requires the user to trust the workspace when prompted. To remediate this issue, users should upgrade to Language Servers for AWS version 1.65.0 or higher.
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Amazon Web Services
- Published
- June 2026
Coverage1 article · 1 outlet
First in our coverage: SecurityWeek, 26 Jun.
- Amazon Q Flaw Enabled Cloud Credential Theft via Malicious RepositoriesSecurityWeek · first in our coverage
New articles also arrive in the RSS feed.