{"cve":"CVE-2026-12957","nvd":{"published":"2026-06-23T17:16:40.977","modified":"2026-10-26T11:10:00.157","status":"Awaiting Analysis","description":"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.\n\n\n\nTo remediate this issue, users should upgrade to Language Servers for AWS version 1.65.0 or higher.","cvss_v4":{"vector":"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","score":8.5},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-732"],"references":["https://aws.amazon.com/security/security-bulletins/2026-047-aws/","https://github.com/aws/language-servers/security/advisories/GHSA-xhcr-j4j9-3gh7"],"products":[],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-12957","score":0.00234,"percentile":0.14111,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-xhcr-j4j9-3gh7","url":"https://osv.dev/vulnerability/GHSA-xhcr-j4j9-3gh7","summary":"Language Servers for AWS Vulnerable to Arbitrary Code Execution","modified":"2026-09-24T19:30:05.274534811Z","packages":[{"ecosystem":"npm","name":"@aws/lsp-codewhisperer","purl":"pkg:npm/%40aws/lsp-codewhisperer","ranges":["<0.0.113"],"fixed":["0.0.113"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}