CVE-2026-17615
Fixed in a distro release EPSS <1%CVSS 7.5
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.
Products: Red Hat Build of Apache Camel 3.33.3.SP1, Red Hat build of Keycloak 26.6, Red Hat build of Keycloak 26.6.7, Red Hat build of Quarkus 3.27.5.SP1, Red Hat build of Quarkus 3.33.3.SP1, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 9.6 Extended Update Support, Red Hat build of Apache Camel 4 for Quarkus 3, Red Hat build of Apicurio Registry 3, Red Hat build of Debezium 3, Red Hat Enterprise Linux 8, Red Hat Fuse 7, Red Hat JBoss Enterprise Application Platform 8, Red Hat JBoss Enterprise Application Platform Expansion Pack, Red Hat Satellite 6
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 9 | pki-resteasy-client | 3.0.26-20.el9_8 |
| AlmaLinux 9 | pki-resteasy-core | 3.0.26-20.el9_8 |
| AlmaLinux 9 | pki-resteasy-jackson2-provider | 3.0.26-20.el9_8 |
| AlmaLinux 9 | pki-resteasy-servlet-initializer | 3.0.26-20.el9_8 |
| Amazon Linux 2 | resteasy-base | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-atom-provider | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-client | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-jackson-provider | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-javadoc | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-jaxb-provider | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-jaxrs | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-jaxrs-all | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-jaxrs-api | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-jettison-provider | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-providers-pom | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-resteasy-pom | 3.0.6-4.amzn2.0.2 |
| Amazon Linux 2 | resteasy-base-tjws | 3.0.6-4.amzn2.0.2 |
| Debian 12 | resteasy3.0 | no fix |
| Debian 13 | resteasy3.0 | no fix |
| Debian 14 | resteasy3.0 | no fix |
| Red Hat Enterprise Linux 9 | pki-resteasy-client | 0:3.0.26-20.el9_8 |
| Red Hat Enterprise Linux 9 | pki-resteasy-core | 0:3.0.26-20.el9_8 |
| Red Hat Enterprise Linux 9 | pki-resteasy-jackson2-provider | 0:3.0.26-20.el9_8 |
| Red Hat Enterprise Linux 9 | pki-resteasy-servlet-initializer | 0:3.0.26-20.el9_8 |
| Red Hat Enterprise Linux 9 | resteasy | 0:3.0.26-20.el9_8 |
| Red Hat rhel e4s 9.4 | pki-resteasy-client | 0:3.0.26-20.el9_4 |
| Red Hat rhel e4s 9.4 | pki-resteasy-core | 0:3.0.26-20.el9_4 |
| Red Hat rhel e4s 9.4 | pki-resteasy-jackson2-provider | 0:3.0.26-20.el9_4 |
| Red Hat rhel e4s 9.4 | pki-resteasy-servlet-initializer | 0:3.0.26-20.el9_4 |
| Red Hat rhel e4s 9.4 | resteasy | 0:3.0.26-20.el9_4 |
| Red Hat rhel eus 9.6 | pki-resteasy-client | 0:3.0.26-20.el9_6 |
| Red Hat rhel eus 9.6 | pki-resteasy-core | 0:3.0.26-20.el9_6 |
| Red Hat rhel eus 9.6 | pki-resteasy-jackson2-provider | 0:3.0.26-20.el9_6 |
| Red Hat rhel eus 9.6 | pki-resteasy-servlet-initializer | 0:3.0.26-20.el9_6 |
| Red Hat rhel eus 9.6 | resteasy | 0:3.0.26-20.el9_6 |
| Rocky Linux 9 | resteasy | 0:3.0.26-20.el9_8 |
| Ubuntu 22.04 LTS | resteasy3.0 | no fix |
| Ubuntu 24.04 LTS | resteasy3.0 | no fix |
| Ubuntu 26.04 LTS | resteasy | no fix |
| Ubuntu 26.04 LTS | resteasy3.0 | no fix |
| Ubuntu 26.10 | resteasy | no fix |
| Ubuntu 26.10 | resteasy3.0 | no fix |
| Ubuntu Pro 16.04 LTS | resteasy | no fix |
| Ubuntu Pro 18.04 LTS | resteasy3.0 | no fix |
| Ubuntu Pro 20.04 LTS | resteasy | no fix |
| Ubuntu Pro 20.04 LTS | resteasy3.0 | no fix |
| Ubuntu Pro 22.04 LTS | resteasy | no fix |
| Ubuntu Pro 24.04 LTS | resteasy | no fix |