Apache Tomcat patches two security bypass flaws
Apache Tomcat fixed two vulnerabilities allowing security policy bypass across the 9.0, 10.1, and 11.0 branches.
Sourcecert.ssi.gouv.fr — open the original
What to check
- Applies to
- The 2 CVEs named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
ANSSI-FR issued an advisory covering multiple vulnerabilities in Apache Tomcat affecting versions 9.0.x prior to 9.0.120, 10.1.x prior to 10.1.57, and 11.0.x prior to 11.0.24. The flaws, tracked as CVE-2026-59083 and CVE-2026-59084, allow an attacker to cause a security policy bypass; the vendor has not specified further technical details of the underlying issue.
Apache released fixed versions on July 7-8, 2026, and administrators are advised to apply the patches referenced in the official Apache Tomcat security bulletins. No public exploitation has been reported at this time.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0876
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