2 lines
7.8 KiB
JSON
2 lines
7.8 KiB
JSON
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An authenticated attacker can perform Server-Side Request Forgery (SSRF) by manipulating the `client_session_host` parameter during refresh token requests. This occurs when a Keycloak client is configured to use the `backchannel.logout.url` with the `application.session.host` placeholder. Successful exploitation allows the attacker to make HTTP requests from the Keycloak server’s network context, potentially probing internal networks or internal APIs, leading to information disclosure."},{"lang":"es","value":"Se encontró una vulnerabilidad en Keycloak. Un atacante autenticado puede realizar falsificación de petición del lado del servidor (SSRF) manipulando el parámetro 'client_session_host' durante las peticiones de token de actualización. Esto ocurre cuando un cliente de Keycloak está configurado para usar la 'backchannel.logout.url' con el marcador de posición 'application.session.host'. La explotación exitosa permite al atacante realizar peticiones HTTP desde el contexto de red del servidor de Keycloak, potencialmente sondeando redes internas o APIs internas, lo que lleva a la revelación de información."}],"id":"CVE-2026-4874","lastModified":"2026-06-26T08:16:23.963","metrics":{"cvssMetricV31":[{"cvssData":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"exploitabilityScore":1.6,"impactScore":1.4,"source":"secalert@redhat.com","type":"Secondary"},{"cvssData":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.1,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"exploitabilityScore":1.6,"impactScore":1.4,"source":"nvd@nist.gov","type":"Primary"}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"id":"CVE-2026-4874","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-03-26T13:53:59.095067Z","version":"2.0.3"}}]},"published":"2026-03-26T08:16:22.700","references":[{"source":"secalert@redhat.com","url":"https://access.redhat.com/errata/RHSA-2026:25097"},{"source":"secalert@redhat.com","url":"https://access.redhat.com/errata/RHSA-2026:25098"},{"source":"secalert@redhat.com","url":"https://access.redhat.com/errata/RHSA-2026:30049"},{"source":"secalert@redhat.com","url":"https://access.redhat.com/errata/RHSA-2026:30050"},{"source":"secalert@redhat.com","tags":["Vendor Advisory"],"url":"https://access.redhat.com/security/cve/CVE-2026-4874"},{"source":"secalert@redhat.com","tags":["Issue Tracking","Vendor Advisory"],"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2451611"}],"sourceIdentifier":"secalert@redhat.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-918"}],"source":"secalert@redhat.com","type":"Secondary"}]}
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