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JoySafeter through 1.0.0 Authenticated RCE via Copilot Standard Mode Shell

Type: advisorySource: Official CVE List1 source record

JoySafeter through 1.0.0 contains a remote code execution vulnerability that allows authenticated users to run operating system commands via an unsandboxed execute tool in Copilot standard mode. Attackers can self-register, select standard mode in the WebSocket chat.start extension, and have the agent invoke subprocess.run with shell=True on the host to access other tenants' data and server secrets.

Announced Group revision 1
Original source ↗

CVE-2026-109443

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: cve:CVE-2026-109443

JoySafeter

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/jd-opensource/JoySafeter",
    "vendor": "jd-opensource",
    "product": "JoySafeter",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "1.0.0"
      }
    ],
    "packageURL": "pkg:github/jd-opensource/JoySafeter",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-109443

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#52409 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement