CERT-FR flags multiple Apache Tomcat flaws
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CERT-FR advisory covers multiple Apache Tomcat vulnerabilities allowing data confidentiality breaches and security bypass; patches available.
CERT-FR has published an advisory describing multiple vulnerabilities affecting Apache Tomcat versions 10.1.x prior to 10.1.61, 11.0.x prior to 11.0.27, and 9.0.x prior to 9.0.123. The flaws can allow an attacker to compromise data confidentiality and bypass security policy controls; at least one issue is described by the vendor without further specification of impact. No exploitation in the wild is mentioned in this advisory.
Nine CVEs are referenced (CVE-2026-101296, CVE-2026-101356, CVE-2026-103119, CVE-2026-65183, CVE-2026-74048, CVE-2026-74049, CVE-2026-80353, CVE-2026-88041, CVE-2026-93446). Defenders running affected Tomcat installations should apply the vendor patches referenced in the Apache Tomcat security bulletins for the 9.0.123, 10.1.61, and 11.0.27 releases as soon as possible.
Mentioned in this report
Source reporting: https://www.cert.cyber.gouv.fr/avis/CERTFR-2026-AVI-1358
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