CVE-2026-73098: critical vulnerability in Apache Juneau
Apache Juneau: Unsafe reflection allows attacker-controlled class initialization during parsing
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 10epss 0.5%
Improper control of dynamically-loaded code vulnerability in Apache Juneau.
When Apache Juneau parses a value into a property of type java.lang.Class (including parameterized forms), the default class swap loaded the named class with initialization enabled, so input naming a class on the application classpath ran that class's static initializer. The impact depends on the classes present in the deployment.
This issue affects Apache Juneau: through 9.2.0.
Users are recommended to upgrade to version 9.2.1, which fixes the issue.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Affected products
Apache Software Foundation · Apache JuneauRelated CVEs — Apache Juneau
In the same product, most dangerous first.
CVE-2026-121489CRITICALApache Juneau: Path traversal in DirectoryResource allows reading files outside the configured root directoryEPSS 0.5%CVE-2026-96677CRITICALApache Juneau: Cross-site scripting via unescaped request variables in HTML-doc chromeEPSS 0.4%CVE-2026-73117CRITICALApache Juneau: Response header CRLF injection and open redirect when applications set headers or redirect targets from request dataEPSS 0.4%CVE-2026-73101CRITICALApache Juneau: Internal exception class and message disclosed via error response header and body regardless of secure defaultsEPSS 0.4%CVE-2026-73100CRITICALApache Juneau: Sensitive request headers logged in cleartext by the default request logger on server errorsEPSS 0.4%CVE-2026-73095HIGHApache Juneau: Denial of service via unbounded memory allocation in parsers and REST request handlingEPSS 0.4%