Threats Tagged 'cve-2026-34480'

The Red Hat Offline Knowledge Portal has been updated to upgrade Solr from version 9. 8. 1 to 10. 0. 0 and to fix multiple security vulnerabilities identified by several CVEs including CVE-2025-11143 and CVE-2026-2332. This update addresses security issues related to the underlying components such as jetty-http and Solr, improving the security posture of the portal. The update also includes content updates as of May 26, 2026. No known exploits are reported in the wild for these vulnerabilities. The update is distributed as a container image available from the Red Hat container registry.

Apache Log4j Core's XmlLayout https://logging.apache.org/log4j/2.x/manual/layouts.html#XmlLayout , in versions up to and including 2.25.3, fails to sanitize characters forbidden by the XML 1.0 specification https://www.w3.org/TR/xml/#charsets producing invalid XML output whenever a log message or MDC value contains such characters. The impact depends on the StAX implementation in use: * JRE built-in StAX: Forbidden characters are silently written to the output, producing malformed XML. Conforming parsers must reject such documents with a fatal error, which may cause downstream log-processing systems to drop the affected records. * Alternative StAX implementations (e.g., Woodstox https://github.com/FasterXML/woodstox , a transitive dependency of the Jackson XML Dataformat module): An exception is thrown during the logging call, and the log event is never delivered to its intended appender, only to Log4j's internal status logger. Users are advised to upgrade to Apache Log4j Core 2.25.4, which corrects this issue by sanitizing forbidden characters before XML output.