{"answers":{"affected":"6 open source packages ship an affected version, including org.keycloak:keycloak-services.","exploited":"There is no known exploitation of CVE-2026-1529 in the wild and no public exploit code.","fix":"Upgrade org.keycloak:keycloak-services to a fixed version for your release line: 26.2.13, 26.4.9 or 26.5.3.","what":"CVE-2026-1529 is a high-severity authentication bypass vulnerability in Red Hat build of Keycloak 26.2, published on 9 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-1529 and fix it if it is affected.\n\nWhat it is: CVE-2026-1529 is a high-severity authentication bypass vulnerability in Red Hat build of Keycloak 26.2, published on 9 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-1529 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- org.keycloak:keycloak-services (Maven): affected all versions; fixed in 26.2.13\n- org.keycloak:keycloak-services (Maven): affected all versions; fixed in 26.2.13\n- org.keycloak:keycloak-services (Maven): affected from 26.3.0; fixed in 26.4.9\n- org.keycloak:keycloak-services (Maven): affected from 26.3.0; fixed in 26.4.9\n- org.keycloak:keycloak-services (Maven): affected from 26.5.0; fixed in 26.5.3\n- org.keycloak:keycloak-services (Maven): affected from 26.5.0; fixed in 26.5.3\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-2026-1529/ (Markdown: https://insights.sbomify.com/CVE-2026-1529/index.md)","id":"CVE-2026-1529","markdown":"https://insights.sbomify.com/CVE-2026-1529/index.md","name":"CVE-2026-1529","record":{"aliases":["ECHO-f035-45d7-d0f3","GHSA-hcvw-475w-8g7p","MINI-j66q-fw3q-j6pj","MINI-vpc7-5ghv-fvwx"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Keycloak identity server","requires_auth":"low_privilege","summary":"Attackers can bypass invitation token signature checks to self-register into unauthorized organizations, gaining illicit access to protected resources.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"redhat","cpe":[],"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-347","name":"Improper Verification of Cryptographic Signature"}],"description":"A flaw was found in Keycloak. An attacker can exploit this vulnerability by modifying the organization ID and target email within a legitimate invitation token's JSON Web Token (JWT) payload. This lack of cryptographic signature verification allows the attacker to successfully self-register into an unauthorized organization, leading to unauthorized access.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":"2026-02-11","github_poc":3,"max_poc_stars":6,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-02-11T06:24:21Z","kind":"github_poc","ref":"https://github.com/0x240x23elu/CVE-2026-1529","stars":6,"title":"Keycloak: Unauthorized organization registration via improper invitation token validation"},{"date":"2026-09-05T20:54:02Z","kind":"github_poc","ref":"https://github.com/0xlyvio/CVE-2026-1529-Keycloak-Exploit-Tool","stars":3,"title":"Keycloak: Unauthorized organization registration via improper invitation token validation"},{"date":"2026-02-13T01:07:15Z","kind":"github_poc","ref":"https://github.com/ackemed/CVE-2026-1529-PoC-keycloak-unauthorized-registration-via-improper-invitation-token-validation","stars":0,"title":"CVE-2026-1529 (PoC) is a critical vulnerability in Keycloak that allows unauthorized organization registration through improper invitation token validation. This exploit tool demonstrates the vulnerability by manipulating JWT tokens to register users in unauthorized organizations."}],"tier":"poc_unverified"},"has_fix":true,"headline":"Keycloak affected by improper invitation token validation","id":"CVE-2026-1529","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":6,"n_references":6,"next":{"headline":"Fog-kubevirt: fog-kubevirt: man-in-the-middle vulnerability due to disabled certificate validation","id":"CVE-2026-1530"},"packages":[{"ecosystem":"Maven","fixed":["26.2.13"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":null,"source":"GHSA-hcvw-475w-8g7p"},{"ecosystem":"Maven","fixed":["26.2.13"],"introduced":["0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","source":"GHSA-hcvw-475w-8g7p"},{"ecosystem":"Maven","fixed":["26.4.9"],"introduced":["26.3.0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":null,"source":"GHSA-hcvw-475w-8g7p"},{"ecosystem":"Maven","fixed":["26.4.9"],"introduced":["26.3.0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","source":"GHSA-hcvw-475w-8g7p"},{"ecosystem":"Maven","fixed":["26.5.3"],"introduced":["26.5.0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":null,"source":"GHSA-hcvw-475w-8g7p"},{"ecosystem":"Maven","fixed":["26.5.3"],"introduced":["26.5.0"],"last_affected":[],"package":"org.keycloak:keycloak-services","purl":"pkg:maven/org.keycloak/keycloak-services","source":"GHSA-hcvw-475w-8g7p"}],"prev":{"headline":"undici is vulnerable to Malicious WebSocket 64-bit length overflows undici parser and crashes the client","id":"CVE-2026-1528"},"products":["Red Hat build of Keycloak 26.2","Red Hat build of Keycloak 26.2.13","Red Hat build of Keycloak 26.4","Red Hat build of Keycloak 26.4.9"],"published":"2026-02-09","related":[],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["Red Hat"]},"summary":"Attackers can bypass invitation token signature checks to self-register into unauthorized organizations, gaining illicit access to protected resources.","url":"https://insights.sbomify.com/CVE-2026-1529/"}