{"action":"Upgrade org.springframework.security:spring-security-saml2-service-provider to 6.5.11 (6.x) or 7.0.6 (7.x) or later.","affected":[{"fixed":"7.0.6","introduced":"7.0.0"},{"fixed":"6.5.11","introduced":"6.5.0"},{"introduced":"6.4.0","last_affected":"6.4.16"},{"introduced":"6.3.0","last_affected":"6.3.16"},{"introduced":"5.8.0","last_affected":"5.8.25"},{"introduced":"0","last_affected":"5.7.23"}],"component":"org.springframework.security:spring-security-saml2-service-provider","cve_ids":["CVE-2026-40988"],"ecosystem":"Maven","epss":0.00331,"exploited":false,"fixed_versions":["7.0.6","6.5.11"],"ghsa_id":"GHSA-m69x-pw9p-7j3q","id":"tcs_01M5N94H8XVF0TBHTSDT1XN9VD","modified_at":"2026-08-12T15:56:00.742012Z","published_at":"2026-06-10T00:31:51Z","references":["https://osv.dev/vulnerability/GHSA-m69x-pw9p-7j3q","https://nvd.nist.gov/vuln/detail/CVE-2026-40988","https://github.com/spring-projects/spring-security","https://github.com/spring-projects/spring-security/releases/tag/6.5.11","https://github.com/spring-projects/spring-security/releases/tag/7.0.6","https://spring.io/security/cve-2026-40988"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-m69x-pw9p-7j3q","url":"https://osv.dev/vulnerability/GHSA-m69x-pw9p-7j3q"}],"summary":"Spring Security SAML2 Service Provider: Unbounded writer inflates the compressed SAML payload into memory (DoS)"}