{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-18967 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-18967 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18967 is a medium-severity authentication bypass vulnerability in Redhat Build of Keycloak, published on 6 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-18967 and fix it if it is affected.\n\nWhat it is: CVE-2026-18967 is a medium-severity authentication bypass vulnerability in Redhat Build of Keycloak, published on 6 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-18967 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-2026-18967/ (Markdown: https://insights.sbomify.com/CVE-2026-18967/index.md)","id":"CVE-2026-18967","markdown":"https://insights.sbomify.com/CVE-2026-18967/index.md","name":"CVE-2026-18967","record":{"aliases":["GHSA-fghp-hcwh-75j2"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["account_takeover","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Identity and Access Management","requires_auth":"none","summary":"Attackers can replay SAML assertions in IdP-initiated flows to hijack user sessions and gain unauthorized access.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[{"product":"build_of_keycloak","vendor":"redhat"},{"product":"jboss_enterprise_application_platform_expansion_pack","vendor":"redhat"}],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-294","name":"Authentication Bypass by Capture-replay"}],"description":"A flaw was found in the SAML broker component of Keycloak, an identity and access management solution. When configured as a SAML broker using the IdP-Initiated flow, Keycloak fails to enforce the OneTimeUse condition in SAML assertions. This allows an attacker who captures a valid, unused assertion to replay it multiple times. Successful exploitation could allow an attacker to hijack a user's session and gain unauthorized access to the system as that user.","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 onetimeuse assertion replay in idp-initiated broker flow","id":"CVE-2026-18967","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"redhat:build_of_keycloak","products":["redhat:build_of_keycloak"],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"ttttonyhe OBlog tags.php cross site scripting","id":"CVE-2026-18968"},"packages":[],"prev":{"headline":"Missing Authorization in PayRange API","id":"CVE-2026-18965"},"products":["Red Hat Build of Keycloak","Red Hat JBoss Enterprise Application Platform Expansion Pack","Red Hat Single Sign-On 7"],"published":"2026-08-06","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-06","vendors":["Red Hat"]},"summary":"Attackers can replay SAML assertions in IdP-initiated flows to hijack user sessions and gain unauthorized access.","url":"https://insights.sbomify.com/CVE-2026-18967/"}