{"id":"CVE-2026-89105","aliases":["EUVD-2026-98188","GHSA-2v6r-vpfh-4h7c","GHSA-857v-p42q-f3qf"],"status":"published","title":"Improper Authentication in HybridTokenAuthenticator of SAP/cloud-security-services-integration-library","description":"The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library accepts tokens from unintended ambient IAS/XSUAA bindings, potentially allowing unauthorized access. This vulnerability allows an attacker to gain unauthorized access to the system by using tokens that should not be accepted, leading to a breach of security.","severity":{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00143,"percentile":0.03676,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1188"],"published":"2026-10-13T00:23:29Z","modified":"2026-10-28T11:19:19Z","products":[{"vendor":"sap_se","product":"sap/cloud-security-services-integration-library"}],"references":[{"url":"https://github.com/SAP/cloud-security-services-integration-library/security/advisories/GHSA-857v-p42q-f3qf","tags":["advisory"]},{"url":"https://url.sap/sapsecuritypatchday","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89105","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2v6r-vpfh-4h7c"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89105.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-89105","title":"Improper Authentication in HybridTokenAuthenticator of SAP/cloud-security-services-integration-library","description":"The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library accepts tokens from unintended ambient IAS/XSUAA bindings, potentially allowing unauthorized access. This vulnerability allows an attacker to gain unauthorized access to the system by using tokens that should not be accepted, leading to a breach of security.","status":"published","published":"2026-10-13T00:23:29.772Z","modified":"2026-10-13T13:28:31.056Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-1188"],"updated_at":"2026-11-02T14:19:55.526923Z"}],"euvd":[{"id":"EUVD-2026-98188","description":"The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library accepts tokens from unintended ambient IAS/XSUAA bindings, potentially allowing unauthorized access. This vulnerability allows an attacker to gain unauthorized access to the system by using tokens that should not be accepted, leading to a breach of security.","status":"published","published":"2026-10-13T00:23:29Z","modified":"2026-10-13T13:28:31Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T17:27:20.758283Z"}],"ghsa":[{"id":"GHSA-2v6r-vpfh-4h7c","title":"The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library...","description":"The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library accepts tokens from unintended ambient IAS/XSUAA bindings, potentially allowing unauthorized access. This vulnerability allows an attacker to gain unauthorized access to the system by using tokens that should not be accepted, leading to a breach of security.","status":"published","published":"2026-10-13T03:30:30Z","modified":"2026-10-13T03:30:37Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-1188"],"updated_at":"2026-11-02T15:13:10.125536Z"}],"nvd":[{"id":"CVE-2026-89105","description":"The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library accepts tokens from unintended ambient IAS/XSUAA bindings, potentially allowing unauthorized access. This vulnerability allows an attacker to gain unauthorized access to the system by using tokens that should not be accepted, leading to a breach of security.","status":"published","published":"2026-10-13T01:16:47.24Z","modified":"2026-10-15T20:38:04.303Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-1188"],"updated_at":"2026-11-02T14:12:56.72789Z"}],"osv":[{"id":"CVE-2026-89105","title":"Improper Authentication in HybridTokenAuthenticator of SAP/cloud-security-services-integration-library","description":"The HybridTokenAuthenticator component of the SAP/cloud-security-services-integration-library accepts tokens from unintended ambient IAS/XSUAA bindings, potentially allowing unauthorized access. This vulnerability allows an attacker to gain unauthorized access to the system by using tokens that should not be accepted, leading to a breach of security.","status":"published","published":"2026-10-13T00:23:29.772Z","modified":"2026-10-28T11:19:19.324536888Z","cvss":[{"version":"3.1","score":4.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-1188"],"updated_at":"2026-11-02T15:45:19.210277Z"}]}}