{"schema_version": "1.6.1", "id": "CVE-2026-90436", "summary": "unauthenticated remote class instantiation via SOAP fault exceptionName", "details": "** UNSUPPORTED WHEN ASSIGNED ** Deserialization of an inbound SOAP fault in Apache Axis 1.x allows unauthenticated remote class instantiation. When a SOAP <Fault> carries a <detail><exceptionName> element, Axis loads the named class and, if a String <data> element is also present, instantiates it through its String constructor before checking that it is an AxisFault. Loading alone runs the class's static initializer. With a suitable class on the application's classpath this leads to remote code execution. The fault is parsed while the engine resolves the target service, before any per-service handler chain runs, so authentication handlers configured on a service do not protect against it. This affects all Apache Axis 1.x versions through 1.4.\n\n\n\nAs Axis 1 has been EOL we recommend you migrate to a different SOAP engine, such as Apache Axis 2/Java. Alternatively you could use a build of Axis with the patch from https://github.com/apache/axis-axis1-java/commit/41f3b4e8d04e310ca81f86b92630ab2c11d608bd applied. The Apache Axis project does not expect to create an Axis 1.x release fixing this problem.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "0"}, {"last_affected": "0"}]}]}, {"ranges": [{"type": "SEMVER", "events": [{"introduced": "0"}, {"last_affected": "0"}]}]}, {"ranges": [{"type": "SEMVER", "events": [{"introduced": "aac718c6035435d96b39d6aebb9c078a13af7cc8"}, {"fixed": "41f3b4e8d04e310ca81f86b92630ab2c11d608bd"}]}]}], "references": [{"type": "WEB", "url": "https://github.com/apache/axis-axis1-java/commit/41f3b4e8d04e310ca81f86b92630ab2c11d608bd"}, {"type": "WEB", "url": "https://lists.apache.org/thread.html/8slf0j9gz35z56t0glt5h0ncwlbn4bdz"}]}