{"action":"Upgrade api-platform/hal to 4.1.29 or later.","affected":[{"fixed":"4.1.29","introduced":"4.0.0"},{"fixed":"4.2.25","introduced":"4.2.0"},{"fixed":"4.3.8","introduced":"4.3.0"}],"component":"api-platform/hal","cve_ids":["CVE-2026-49858"],"ecosystem":"Packagist","epss":0.00315,"exploited":false,"fixed_versions":["4.1.29","4.2.25","4.3.8"],"ghsa_id":"GHSA-pjhx-3c3w-9v23","id":"tcs_01M5KF6F2YMJ5J93CSCMMWFCD4","modified_at":"2026-07-10T14:46:38.913654875Z","published_at":"2026-07-10T14:32:01Z","references":["https://osv.dev/vulnerability/GHSA-pjhx-3c3w-9v23","https://github.com/api-platform/core/security/advisories/GHSA-pjhx-3c3w-9v23","https://nvd.nist.gov/vuln/detail/CVE-2026-49858","https://github.com/api-platform/core"],"severity":{"label":"medium","score":5.9},"sources":[{"source":"osv","source_id":"GHSA-pjhx-3c3w-9v23#Packagist/api-platform/hal","url":"https://osv.dev/vulnerability/GHSA-pjhx-3c3w-9v23"}],"summary":"API Platform Core vulnerable to cross-user attribute leak in JSON:API and HAL item normalizers due to missing isCacheKeySafe gate"}