{"answers":{"affected":"2 open source packages ship an affected version, including org.keycloak:keycloak-core. It affects 2 products.","exploited":"There is no known exploitation of CVE-2023-6841 in the wild and no public exploit code.","fix":"Upgrade org.keycloak:keycloak-core to 24.0.0 or later.","what":"CVE-2023-6841 is a high-severity denial of service vulnerability in Redhat Keycloak, published on 10 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-6841 and fix it if it is affected.\n\nWhat it is: CVE-2023-6841 is a high-severity denial of service vulnerability in Redhat Keycloak, published on 10 Sep 2024. 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-2023-6841 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.keycloak:keycloak-core (Maven): affected all versions; fixed in 24.0.0\n- org.keycloak:keycloak-core (Maven): affected all versions; fixed in 24.0.0\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-2023-6841/ (Markdown: https://insights.sbomify.com/CVE-2023-6841/index.md)","id":"CVE-2023-6841","markdown":"https://insights.sbomify.com/CVE-2023-6841/index.md","name":"CVE-2023-6841","record":{"aliases":["GHSA-w97f-w3hq-36g2"],"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 attacker can cause resource exhaustion and denial of service in Keycloak by sending repeated requests with unlimited attributes.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"keycloak","vendor":"redhat"},{"product":"single_sign-on","vendor":"redhat"}],"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-231","name":"Improper Handling of Extra Values"}],"description":"A denial of service vulnerability was found in keycloak where the amount of attributes per object is not limited,an attacker by sending repeated HTTP requests could cause a resource exhaustion when the application send back rows with long attribute values.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Keycloak: amount of attributes per object is not limited and it may lead to dos","id":"CVE-2023-6841","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":"redhat:keycloak","products":["redhat:keycloak","redhat:single_sign-on"],"type":"denial_of_service","year":"2023"},"n_packages":2,"n_references":2,"next":{"headline":"Formidable Forms \u003c= 6.7 - Authenticated (Administrator+) Stored Cross-Site Scripting","id":"CVE-2023-6842"},"packages":[{"ecosystem":"Maven","fixed":["24.0.0"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-core","purl":null,"source":"GHSA-w97f-w3hq-36g2"},{"ecosystem":"Maven","fixed":["24.0.0"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-core","purl":"pkg:maven/org.keycloak/keycloak-core","source":"GHSA-w97f-w3hq-36g2"}],"prev":{"headline":"Missing Authorization in GitLab","id":"CVE-2023-6840"},"products":["Red Hat Fuse 7","Red Hat Mobile Application Platform 4","Red Hat OpenShift Application Runtimes","Red Hat Process Automation 7","Red Hat Single Sign-On 7","Red Hat build of Quarkus","Red Hat support for Spring Boot"],"published":"2024-09-10","related":[{"cvss_score":10,"headline":"Keycloak vulnerable to cross-site scripting when validating URI-schemes on SAML and OIDC","id":"CVE-2022-4361","kev_date_added":null,"published":"2023-07-07"},{"cvss_score":9.8,"headline":"Keycloak vulnerable to privilege escalation on Token Exchange feature","id":"CVE-2022-1245","kev_date_added":null,"published":"2022-07-07"},{"cvss_score":9.6,"headline":"keycloak Self Stored Cross-site Scripting vulnerability","id":"CVE-2021-20195","kev_date_added":null,"published":"2021-05-28"},{"cvss_score":9.3,"headline":"Keycloak Authentication Error","id":"CVE-2019-14910","kev_date_added":null,"published":"2019-12-05"},{"cvss_score":9.3,"headline":"Keycloak Authentication Error","id":"CVE-2019-14909","kev_date_added":null,"published":"2019-12-04"},{"cvss_score":9.1,"headline":"Keycloak vulnerable to path traversal via double URL encoding","id":"CVE-2022-3782","kev_date_added":null,"published":"2023-01-11"},{"cvss_score":9.1,"headline":"keycloak vulnerable to unauthorized login via mail server setup","id":"CVE-2019-14837","kev_date_added":null,"published":"2020-01-07"}],"sources":[{"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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-11-08","vendors":["Red Hat"]},"summary":"An attacker can cause resource exhaustion and denial of service in Keycloak by sending repeated requests with unlimited attributes.","url":"https://insights.sbomify.com/CVE-2023-6841/"}