{"id":"CVE-2026-2575","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-2575","generatedAt":"2026-10-28T02:12:57.436Z","title":"An unauthenticated remote attacker can trigger an application level Denial of Service (DoS) by sending a highly compressed SAMLRequest through the SAML Redirect Binding.","description":"A flaw was found in Keycloak. An unauthenticated remote attacker can trigger an application level Denial of Service (DoS) by sending a highly compressed SAMLRequest through the SAML Redirect Binding. The server fails to enforce size limits during DEFLATE decompression, leading to an OutOfMemoryError (OOM) and subsequent process termination. This vulnerability allows an attacker to disrupt the availability of the service.","published":"2026-03-18T04:17:17.000Z","lastModified":"2026-10-06T18:16:54.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"},"cwe":["CWE-409"],"affected":["redhat/build of keycloak"],"epss":{"score":0.00648,"percentile":0.50782,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.65%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:3947","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:3948","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:76128","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:76129","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:76130","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:76132","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:76134","source":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-2575","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2440149","tags":["Issue Tracking","Vendor Advisory"],"source":"secalert@redhat.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-2575","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}