{"answers":{"affected":"It affects 4 products.","exploited":"There is no known exploitation of CVE-2026-4366 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-4366 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-4366 is a medium-severity server-side request forgery vulnerability in Redhat Build of Keycloak, published on 18 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-4366 and fix it if it is affected.\n\nWhat it is: CVE-2026-4366 is a medium-severity server-side request forgery vulnerability in Redhat Build of Keycloak, published on 18 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-4366 in the wild and no public exploit code.\n\nAffected product: Redhat Build of Keycloak. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-4366/ (Markdown: https://insights.sbomify.com/CVE-2026-4366/index.md)","id":"CVE-2026-4366","markdown":"https://insights.sbomify.com/CVE-2026-4366/index.md","name":"CVE-2026-4366","record":{"aliases":["GHSA-g2qr-3mxm-86jj"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Keycloak identity management","requires_auth":"none","summary":"Attackers can exploit improper HTTP redirect handling in Keycloak to access internal resources and cloud metadata, leading to information disclosure.","user_interaction":"not_required","vuln_class":"ssrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"build_of_keycloak","vendor":"redhat"},{"product":"jboss_enterprise_application_platform","vendor":"redhat"},{"product":"jboss_enterprise_application_platform_expansion_pack","vendor":"redhat"},{"product":"single_sign-on","vendor":"redhat"}],"cvss":{"score":5.8,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"A flaw was identified in Keycloak, an identity and access management solution, where it improperly follows HTTP redirects when processing certain client configuration requests. This behavior allows an attacker to trick the server into making unintended requests to internal or restricted resources. As a result, sensitive internal services such as cloud metadata endpoints could be accessed. This issue may lead to information disclosure and enable attackers to map internal network infrastructure.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Keycloak-services: blind server-side request forgery (ssrf) via http redirect handling in keycloak","id":"CVE-2026-4366","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"redhat:build_of_keycloak","products":["redhat:build_of_keycloak","redhat:jboss_enterprise_application_platform","redhat:single_sign-on"],"type":"ssrf","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Libxpm: libxpm: denial of service via out-of-bounds read in xpm file parsing","id":"CVE-2026-4367"},"packages":[],"prev":{"headline":"LearnPress \u003c= 4.3.2.8 - Missing Authorization to Unauthenticated Arbitrary Quiz Answer Deletion","id":"CVE-2026-4365"},"products":["Red Hat Build of Keycloak","Red Hat JBoss Enterprise Application Platform 8","Red Hat JBoss Enterprise Application Platform Expansion Pack","Red Hat Single Sign-On 7","Red Hat build of Keycloak 26.4","Red Hat build of Keycloak 26.4.12"],"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":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-09","vendors":["Red Hat"]},"summary":"Attackers can exploit improper HTTP redirect handling in Keycloak to access internal resources and cloud metadata, leading to information disclosure.","url":"https://insights.sbomify.com/CVE-2026-4366/"}