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{"acknowledgement": "Red Hat would like to thank Leon Zlobecki for reporting this issue.", "bugzilla": {"description": "resteasy-core: RESTeasy SourceProvider remote unauthenticated file read", "id": "2507635", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507635"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-611", "details": ["A flaw was found in RESTEasy's SourceProvider. This vulnerability allows an unauthenticated attacker to perform an unauthenticated remote file read. By sending a specially crafted XML body with a DOCTYPE declaration referencing external entities to an endpoint that accepts application/xml and returns Source or StreamSource, the server can be tricked into resolving the entity and including sensitive file contents in the HTTP response. This is due to the SourceProvider.writeTo() method creating a SAXParser without disabling external entity resolution, leading to an XML External Entity (XXE) vulnerability."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, avoid exposing RESTEasy endpoints that return Source or StreamSource types. Alternatively, implement a custom MessageBodyWriter for Source types that explicitly applies XML security features to the SAXParserFactory before parsing. Changes to application configuration or code typically require an application redeployment or restart to take effect."}, "name": "CVE-2026-17615", "package_state": [{"cpe": "cpe:/a:redhat:camel_quarkus:3", "fix_state": "Affected", "package_name": "resteasy-core", "product_name": "Red Hat build of Apache Camel 4 for Quarkus 3"}, {"cpe": "cpe:/a:redhat:apicurio_registry:3", "fix_state": "Affected", "package_name": "resteasy-core", "product_name": "Red Hat build of Apicurio Registry 3"}, {"cpe": "cpe:/a:redhat:debezium:3", "fix_state": "Affected", "package_name": "resteasy-core", "product_name": "Red Hat build of Debezium 3"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Affected", "package_name": "keycloak/rhbk-rhel9-operator", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Affected", "package_name": "resteasy-core", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Affected", "package_name": "rhbk/keycloak-rhel9-operator", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Affected", "package_name": "rhbk-keycloak-rhel9-operator/rhbk-keycloak-rhel9-operator", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:build_keycloak:", "fix_state": "Affected", "package_name": "rhbk-rhel9-operator/rhbk-rhel9-operator", "product_name": "Red Hat Build of Keycloak"}, {"cpe": "cpe:/a:redhat:quarkus:3", "fix_state": "Affected", "package_name": "resteasy-core", "product_name": "Red Hat build of Quarkus"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "impact": "important", "package_name": "pki-core:10.6/resteasy", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "impact": "important", "package_name": "pki-deps:10.6/resteasy", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "impact": "important", "package_name": "resteasy", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Affected", "package_name": "resteasy-core", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "resteasy-core", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "resteasy-core", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "candlepin", "product_name": "Red Hat Satellite 6"}], "public_date": "2026-08-31T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-17615\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-17615"], "statement": "Important: This flaw allows unauthenticated remote file disclosure due to improper XML external entity (XXE) resolution in RESTEasy's SourceProvider. An attacker can exploit this by sending a crafted XML request to an exposed endpoint that processes `application/xml` and returns `Source` or `StreamSource` types, leading to the disclosure of sensitive server-side files. This affects applications utilizing RESTEasy where endpoints are configured to accept XML input and return `Source` or `StreamSource` objects, potentially exposing sensitive data on Red Hat supported products.", "threat_severity": "Important"}

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