{"answers":{"affected":"5 open source packages ship an affected version, including org.keycloak:keycloak-server-spi-private, keycloak and org.keycloak:keycloak-services. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2603 exists.","fix":"Upgrade org.keycloak:keycloak-server-spi-private to 26.5.5 or later.","what":"CVE-2026-2603 is a high-severity authentication bypass vulnerability in Redhat Build of Keycloak, published on 18 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-2603 and fix it if it is affected.\n\nWhat it is: CVE-2026-2603 is a high-severity authentication bypass vulnerability in Redhat Build of Keycloak, published on 18 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-2603 exists.\n\nAffected packages and fixed versions:\n- org.keycloak:keycloak-server-spi-private (Maven): affected all versions; fixed in 26.5.5\n- org.keycloak:keycloak-server-spi-private (Maven): affected all versions; fixed in 26.5.5\n- keycloak (Bitnami): affected from 26.2.0; fixed in 26.2.14, 26.4.10\n- org.keycloak:keycloak-services (Maven): affected all versions; fixed in 26.5.5\n- org.keycloak:keycloak-services (Maven): affected all versions; fixed in 26.5.5\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-2603/ (Markdown: https://insights.sbomify.com/CVE-2026-2603/index.md)","id":"CVE-2026-2603","markdown":"https://insights.sbomify.com/CVE-2026-2603/index.md","name":"CVE-2026-2603","record":{"aliases":["BIT-keycloak-2026-2603","ECHO-3d2b-de07-3bbe","GHSA-x4p7-7chp-64hq","MINI-2cvf-xw78-78f4","MINI-jv86-43mf-v9w2"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Keycloak identity provider","requires_auth":"low_privilege","summary":"Attackers can bypass authentication controls by sending valid SAML responses to disabled identity providers, allowing unauthorized broker logins in Keycloak.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"build_of_keycloak","vendor":"redhat"}],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"}],"description":"A flaw was found in Keycloak. A remote attacker could bypass security controls by sending a valid SAML response from an external Identity Provider (IdP) to the Keycloak SAML endpoint for IdP-initiated broker logins. This allows the attacker to complete broker logins even when the SAML Identity Provider is disabled, leading to unauthorized authentication.","ecosystems":["Bitnami","Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Keycloak: keycloak: unauthorized authentication via disabled saml identity provider","id":"CVE-2026-2603","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"redhat:build_of_keycloak","products":["redhat:build_of_keycloak"],"type":"auth_bypass","year":"2026"},"n_packages":5,"n_references":6,"next":{"headline":"Evolution-data-server: evolution data server: arbitrary file deletion via inconsistent uri handling","id":"CVE-2026-2604"},"packages":[{"ecosystem":"Bitnami","fixed":["26.2.14","26.4.10"],"introduced":["26.2.0","26.4.0"],"last_affected":[],"package":"keycloak","purl":"pkg:bitnami/keycloak","source":"BIT-keycloak-2026-2603"},{"ecosystem":"Maven","fixed":["26.5.5"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-server-spi-private","purl":null,"source":"GHSA-x4p7-7chp-64hq"},{"ecosystem":"Maven","fixed":["26.5.5"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-server-spi-private","purl":"pkg:maven/org.keycloak/keycloak-server-spi-private","source":"GHSA-x4p7-7chp-64hq"},{"ecosystem":"Maven","fixed":["26.5.5"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":null,"source":"GHSA-x4p7-7chp-64hq"},{"ecosystem":"Maven","fixed":["26.5.5"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","source":"GHSA-x4p7-7chp-64hq"}],"prev":{"headline":"Twentig \u003c= 1.9.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'featuredImageSizeWidth'","id":"CVE-2026-2602"},"products":["Red Hat build of Keycloak 26.2","Red Hat build of Keycloak 26.2.14","Red Hat build of Keycloak 26.4","Red Hat build of Keycloak 26.4.10"],"published":"2026-03-18","related":[{"cvss_score":8.8,"headline":"Keycloak-services: keycloak-services: dcr protocol mapper type-swap policy bypass allows privilege escalation","id":"CVE-2026-15572","kev_date_added":null,"published":"2026-08-05"},{"cvss_score":8.8,"headline":"Keycloak SAML Broken has Authentication Bypass by Primary Weakness","id":"CVE-2026-3047","kev_date_added":null,"published":"2026-03-05"},{"cvss_score":8.1,"headline":"Keycloak-services: keycloak-services: authorization bypass via unnormalized uri matching in pathmatcher","id":"CVE-2026-15573","kev_date_added":null,"published":"2026-08-05"},{"cvss_score":8.1,"headline":"Keycloak-services: keycloak-services: default dcr policy allows role forgery via user property mappers","id":"CVE-2026-16102","kev_date_added":null,"published":"2026-08-05"},{"cvss_score":8.1,"headline":"Org.keycloak/keycloak-quarkus-server: keycloak: unauthorized access via jwt authorization grant with disabled users","id":"CVE-2026-1609","kev_date_added":null,"published":"2026-07-16"},{"cvss_score":8.1,"headline":"Org.keycloak:keycloak-services: keycloak: authentication bypass via jwt algorithm confusion","id":"CVE-2026-11800","kev_date_added":null,"published":"2026-06-25"},{"cvss_score":8.1,"headline":"Keycloak-policy-enforcer: keycloak policy enforcer: authorization bypass via incorrect uri comparison","id":"CVE-2026-9800","kev_date_added":null,"published":"2026-06-25"}],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["Red Hat"]},"summary":"Attackers can bypass authentication controls by sending valid SAML responses to disabled identity providers, allowing unauthorized broker logins in Keycloak.","url":"https://insights.sbomify.com/CVE-2026-2603/"}