Is there a public exploit for CVE-2026-73099?

No public exploit for CVE-2026-73099 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-73099?

CVE-2026-73099 scores CVSS 10 (v4.0), rated critical.

What does CVE-2026-73099 affect?

CVE-2026-73099 affects Apache Software Foundation Apache Juneau.

10.0 Critical

Cross-Site Request Forgery (CSRF) vulnerability in Apache Juneau.

CVE-2026-73099

Cross-Site Request Forgery (CSRF) vulnerability in Apache Juneau. The REST server accepts a "content" query parameter that replaces the request body, and this is enabled by default on every HTTP method, including GET. A cross-site link can therefore deliver an attacker-chosen request body to an endpoint without a CORS preflight, defeating protections that rely on the HTTP method or content type instead of an anti-CSRF token. This issue affects Apache Juneau: through 9.2.0. Users are recommended to upgrade to version 9.2.1, which fixes the issue. Applications that do not use the content parameter can also set disableContentParam to true.

Assessment

CVSS: 10 (v4.0)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 5 November 2026
Last updated: 5 November 2026
Affected: Apache Software Foundation · Apache Juneau
Assigner: apache

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

At the source

EUVD (ENISA)

References

https://lists.apache.org/thread.html/j05q7vw08j48o96tdlzcsd4sozx1lyl6

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