Arbitrary Code Execution Vulnerability in Open-VSX Marketplace Extensions
CVE-2025-6705

7.6HIGH

Key Information:

Vendor

Eclipse Foundation

Status
Eclipse Open Vsx
Vendor
CVE Published:
27 June 2025

What is CVE-2025-6705?

An issue in the Open-VSX marketplace allowed arbitrary build scripts to be executed for auto-published extensions due to a lack of proper sandboxing during CI job execution. This vulnerability enabled an attacker with access to an existing extension to potentially hijack the service account associated with the marketplace. The issue was addressed on June 24, 2025, after identifying and rectifying the vulnerable portions of the publish-extension code repository.

Affected Version(s)

Eclipse Open VSX date < 20250624

References

https://open-vsx.org
product
https://github.com/EclipseFdn/publish-extensions/pull/881
patch

CVSS V4

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Oren Yomtov
.
CVE-2025-6705 : Arbitrary Code Execution Vulnerability in Open-VSX Marketplace Extensions