{"action":"Upgrade @budibase/backend-core to 3.35.10 or later.","affected":[{"fixed":"3.35.10","introduced":"0"}],"component":"@budibase/backend-core","cve_ids":["CVE-2026-42239"],"ecosystem":"npm","epss":0.00283,"exploited":false,"fixed_versions":["3.35.10"],"ghsa_id":"GHSA-4f9j-vr4p-642r","id":"tcs_01M5KF067TMWKKBFWZ3D0Q5FCZ","modified_at":"2026-05-11T13:53:11.910497Z","published_at":"2026-04-24T16:18:52Z","references":["https://osv.dev/vulnerability/GHSA-4f9j-vr4p-642r","https://github.com/Budibase/budibase/security/advisories/GHSA-4f9j-vr4p-642r","https://nvd.nist.gov/vuln/detail/CVE-2026-42239","https://github.com/Budibase/budibase","https://github.com/Budibase/budibase/releases/tag/3.35.10"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"GHSA-4f9j-vr4p-642r","url":"https://osv.dev/vulnerability/GHSA-4f9j-vr4p-642r"}],"summary":"Budibase auth session cookies are set with httpOnly:false — any XSS can lead to full account takeover"}