Eclipse Foundation Eclipse OpenVSX vulnerabilities

Latest Eclipse Foundation Eclipse OpenVSX CVEs

Newest publication first

1. CVE-2026-89321 openvsx: OpenVSX: Denial of Service via uncontrolled temporary file growth

   Published 2026-09-14

   Medium·CVSS 4.3 EPSS 0.44%

   Publishing limits the compressed size of a VSIX (ovsx.publishing.max-content-size, 512 MB by default) but nothing limited how large an entry becomes when opened. On the first request to /vscode/unpkg/{namespace}/{extension}/{version}/{path}, WebResourceService opened the entry wi...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.