{"action":"Upgrade @backstage/plugin-auth-backend-module-oidc-provider to 0.4.20 or later.","affected":[{"fixed":"0.4.20","introduced":"0"}],"component":"@backstage/plugin-auth-backend-module-oidc-provider","cve_ids":["CVE-2026-106488"],"ecosystem":"npm","epss":0.0028,"exploited":false,"fixed_versions":["0.4.20"],"ghsa_id":"GHSA-826h-28h9-65hg","id":"tcs_01M5KFBB9JCEK4SF8K7FQDDMTV","modified_at":"2026-10-07T18:15:10.726184367Z","published_at":"2026-10-07T18:01:02Z","references":["https://osv.dev/vulnerability/GHSA-826h-28h9-65hg","https://github.com/backstage/backstage/security/advisories/GHSA-826h-28h9-65hg","https://nvd.nist.gov/vuln/detail/CVE-2026-106488","https://github.com/backstage/backstage/commit/1b1f05e82161aaabc226c1d7d498d746956bf942","https://github.com/backstage/backstage","https://github.com/backstage/backstage/releases/tag/v1.54.6"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"GHSA-826h-28h9-65hg","url":"https://osv.dev/vulnerability/GHSA-826h-28h9-65hg"}],"summary":"Backstage: Improper authentication in the OIDC provider"}