{"action":"Upgrade poweradmin/poweradmin to 4.2.4 or later.","affected":[{"fixed":"4.2.4","introduced":"0"},{"fixed":"4.3.3","introduced":"4.3.0"}],"component":"poweradmin/poweradmin","cve_ids":["CVE-2026-54588"],"ecosystem":"Packagist","epss":0.00543,"exploited":false,"fixed_versions":["4.2.4","4.3.3"],"ghsa_id":"GHSA-3735-5339-xfwx","id":"tcs_01M5KESQ6YEX63Q2R2RCEG1T36","modified_at":"2026-09-10T03:50:51.408126394Z","published_at":"2026-07-28T16:40:05Z","references":["https://osv.dev/vulnerability/GHSA-3735-5339-xfwx","https://github.com/poweradmin/poweradmin/security/advisories/GHSA-3735-5339-xfwx","https://nvd.nist.gov/vuln/detail/CVE-2026-54588","https://github.com/poweradmin/poweradmin","https://github.com/poweradmin/poweradmin/releases/tag/v4.2.4","https://github.com/poweradmin/poweradmin/releases/tag/v4.3.3"],"severity":{"label":"critical","score":9.6},"sources":[{"source":"osv","source_id":"GHSA-3735-5339-xfwx","url":"https://osv.dev/vulnerability/GHSA-3735-5339-xfwx"}],"summary":"Poweradmin has Host Header Injection in OIDC redirect_uri, SAML ACS/SLO URL, and Logout Redirect Construction."}