{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-18212 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-18212 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18212 is a high-severity denial of service vulnerability in Red Hat Data Grid 8, published on 16 Sep 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-2026-18212 and fix it if it is affected.\n\nWhat it is: CVE-2026-18212 is a high-severity denial of service vulnerability in Red Hat Data Grid 8, published on 16 Sep 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-2026-18212 in the wild and no public exploit code.\n\nAffected product: Red Hat Data Grid 8. 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-2026-18212/ (Markdown: https://insights.sbomify.com/CVE-2026-18212/index.md)","id":"CVE-2026-18212","markdown":"https://insights.sbomify.com/CVE-2026-18212/index.md","name":"CVE-2026-18212","record":{"aliases":["GHSA-wgrv-cjmx-4vfw"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Identity and access management","requires_auth":"none","summary":"An unauthenticated attacker can cause denial of service in Keycloak by sending repeated malformed SAML requests that leak native zlib memory.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"}],"description":"A flaw was found in the SAML Redirect Binding implementation of Keycloak, an open-source identity and access management solution. The issue occurs because the custom DEFLATE compression and decompression helpers fail to release native zlib memory after use. An unauthenticated attacker can exploit this by sending repeated malformed SAML requests, leading to native memory exhaustion and a denial of service.","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: keycloak-services: saml redirect deflate helpers leak native zlib state","id":"CVE-2026-18212","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"Keycloak-services: keycloak-services: google external access-token exchange bypasses hosted-domain restriction","id":"CVE-2026-18214"},"packages":[],"prev":{"headline":"Keycloak-services: keycloak-services: secure-client-uris policy bypass via localhost-prefixed domains","id":"CVE-2026-18211"},"products":["Red Hat Data Grid 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 26.4.16","Red Hat build of Keycloak 26.6","Red Hat build of Keycloak 26.6.7"],"published":"2026-09-16","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-09-16","vendors":["Red Hat"]},"summary":"An unauthenticated attacker can cause denial of service in Keycloak by sending repeated malformed SAML requests that leak native zlib memory.","url":"https://insights.sbomify.com/CVE-2026-18212/"}