{"action":"Upgrade org.thymeleaf:thymeleaf to 3.1.4.RELEASE or later.","affected":[{"fixed":"3.1.4.RELEASE","introduced":"0"}],"component":"org.thymeleaf:thymeleaf","cve_ids":["CVE-2026-40477"],"ecosystem":"Maven","epss":0.00851,"exploited":false,"fixed_versions":["3.1.4.RELEASE"],"ghsa_id":"GHSA-r4v4-5mwr-2fwr","id":"tcs_01M5N9AXS85YT80C93SX2S1Y9P","modified_at":"2026-05-05T16:10:40.722195Z","published_at":"2026-04-15T19:46:04Z","references":["https://osv.dev/vulnerability/GHSA-r4v4-5mwr-2fwr","https://github.com/thymeleaf/thymeleaf/security/advisories/GHSA-r4v4-5mwr-2fwr","https://nvd.nist.gov/vuln/detail/CVE-2026-40477","https://github.com/thymeleaf/thymeleaf"],"severity":{"label":"critical","score":9},"sources":[{"source":"osv","source_id":"GHSA-r4v4-5mwr-2fwr","url":"https://osv.dev/vulnerability/GHSA-r4v4-5mwr-2fwr"}],"summary":"Improper restriction of the scope of accessible objects in Thymeleaf expressions"}