{"action":"Upgrade avo to 3.32.1 or later.","affected":[{"fixed":"3.32.1","introduced":"0"},{"fixed":"4.0.0.beta.51","introduced":"4.0.0.beta.1"}],"component":"avo","cve_ids":["CVE-2026-55518"],"ecosystem":"RubyGems","epss":0.00411,"exploited":false,"fixed_versions":["3.32.1","4.0.0.beta.51"],"ghsa_id":"GHSA-8fq9-273g-6mrg","id":"tcs_01M5KEJ192WDYX6SHAHBXVP8S9","modified_at":"2026-07-18T17:30:29.248210428Z","published_at":"2026-06-17T18:49:11Z","references":["https://osv.dev/vulnerability/GHSA-8fq9-273g-6mrg","https://github.com/avo-hq/avo/security/advisories/GHSA-8fq9-273g-6mrg","https://nvd.nist.gov/vuln/detail/CVE-2026-55518","https://github.com/avo-hq/avo/pull/4568","https://github.com/avo-hq/avo/commit/995928e586fd1788dd496bd51c4dbe4a79cb2b9c","https://github.com/avo-hq/avo","https://github.com/avo-hq/avo/releases/tag/v3.32.1","https://github.com/rubysec/ruby-advisory-db/blob/master/gems/avo/CVE-2026-55518.yml","https://www.cve.org/CVERecord?id=CVE-2026-55518"],"severity":{"label":"critical","score":9.6},"sources":[{"source":"osv","source_id":"GHSA-8fq9-273g-6mrg","url":"https://osv.dev/vulnerability/GHSA-8fq9-273g-6mrg"}],"summary":"Avo: Missing Authorization in Avo Association Attach Endpoint Allows Unauthorized Relationship Manipulation and Privilege Escalation"}