{"action":"Upgrade katello to 4.21.0.rc1 or later.","affected":[{"fixed":"4.21.0.rc1","introduced":"0"}],"component":"katello","cve_ids":["CVE-2026-12515"],"ecosystem":"RubyGems","epss":0.00223,"exploited":false,"fixed_versions":["4.21.0.rc1"],"ghsa_id":"GHSA-c43c-rf7g-5xpg","id":"tcs_01M5KEJKHX2ZFEVNW3VBAP34EE","modified_at":"2026-08-05T00:45:57.347825721Z","published_at":"2026-06-17T18:35:57Z","references":["https://osv.dev/vulnerability/GHSA-c43c-rf7g-5xpg","https://nvd.nist.gov/vuln/detail/CVE-2026-12515","https://github.com/Katello/katello/pull/11712","https://access.redhat.com/errata/RHSA-2026:50221","https://access.redhat.com/errata/RHSA-2026:50222","https://access.redhat.com/errata/RHSA-2026:50223","https://access.redhat.com/errata/RHSA-2026:50263","https://access.redhat.com/security/cve/CVE-2026-12515","https://bugzilla.redhat.com/show_bug.cgi?id=2489812","https://github.com/Katello/katello","https://github.com/rubysec/ruby-advisory-db/blob/master/gems/katello/CVE-2026-12515.yml"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"GHSA-c43c-rf7g-5xpg","url":"https://osv.dev/vulnerability/GHSA-c43c-rf7g-5xpg"}],"summary":"katello: missing repository authorization in content_uploads exposes cross-product content existence"}