Changeflow GovPing Data Privacy & Cybersecurity Apache Tomcat Multiple Vulnerabilities
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Apache Tomcat Multiple Vulnerabilities

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Summary

CERT-FR issued an advisory warning of multiple vulnerabilities in Apache Tomcat affecting versions 10.1.x prior to 10.1.54, 11.0.x prior to 11.0.21, and 9.0.x prior to 9.0.117. The vulnerabilities allow attackers to compromise data confidentiality, data integrity, and bypass security policies. Organizations running affected Tomcat deployments must apply available patches referenced in Apache security bulletins.

What changed

CERT-FR published a security advisory detailing multiple vulnerabilities discovered in Apache Tomcat across three major version lines. The advisory references 11 CVEs including CVE-2025-66614 and CVE-2026-34483 through CVE-2026-34500, addressing issues in Tomcat versions released between March and April 2026. The vulnerabilities pose risks including data confidentiality compromise, data integrity compromise, and security policy bypass.

Organizations running Apache Tomcat as a web server or application server face potential exploitation if unpatched. System administrators should immediately inventory Tomcat deployments, identify affected versions, and apply the latest security patches from Apache's official security pages. Failure to patch could result in unauthorized access to sensitive data or system compromise.

What to do next

  1. Identify all Apache Tomcat installations within your infrastructure
  2. Upgrade affected Tomcat instances to patched versions (10.1.54+, 11.0.21+, or 9.0.117+)
  3. Review Apache security bulletins for specific CVE details and remediation steps

Archived snapshot

Apr 10, 2026

GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.

Premier Ministre S.G.D.S.N

Agence nationale
de la sécurité des
systèmes d'information

Paris, le 10 avril 2026 N° CERTFR-2026-AVI-0418 Affaire suivie par: CERT-FR

Avis du CERT-FR

Objet: Multiples vulnérabilités dans Apache Tomcat

Gestion du document

| Référence | CERTFR-2026-AVI-0418 |
| Titre | Multiples vulnérabilités dans Apache Tomcat |
| Date de la première version | 10 avril 2026 |
| Date de la dernière version | 10 avril 2026 |
| Source(s) | Bulletin de sécurité Apache Tomcat ApacheTomcat11.0.20 du 20 mars 2026
Bulletin de sécurité Apache Tomcat ApacheTomcat9.0.116 du 20 mars 2026
Bulletin de sécurité Apache Tomcat ApacheTomcat10.1.53 du 23 mars 2026
Bulletin de sécurité Apache Tomcat ApacheTomcat10.1.54 du 02 avril 2026
Bulletin de sécurité Apache Tomcat ApacheTomcat9.0.117 du 03 avril 2026
Bulletin de sécurité Apache Tomcat ApacheTomcat11.0.21 du 04 avril 2026 |
Une gestion de version détaillée se trouve à la fin de ce document.


Risques

  • Atteinte à l'intégrité des données
  • Atteinte à la confidentialité des données
  • Contournement de la politique de sécurité
  • Non spécifié par l'éditeur

Systèmes affectés

  • Tomcat versions 10.1.x antérieures à 10.1.54
  • Tomcat versions 11.0.x antérieures à 11.0.21
  • Tomcat versions 9.0.x antérieures à 9.0.117

Résumé

De multiples vulnérabilités ont été découvertes dans Apache Tomcat. Elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, une atteinte à l'intégrité des données et un contournement de la politique de sécurité.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Documentation


Gestion détaillée du document

  1. le 10 avril 2026 Version initiale

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Last updated

Classification

Agency
CERT-FR
Published
April 10th, 2026
Instrument
Notice
Legal weight
Non-binding
Stage
Final
Change scope
Substantive
Document ID
CERTFR-2026-AVI-0418

Who this affects

Applies to
Technology companies Government agencies Manufacturers
Industry sector
5112 Software & Technology
Activity scope
Vulnerability patching Security advisory response Server maintenance
Geographic scope
France FR

Taxonomy

Primary area
Cybersecurity
Operational domain
IT Security
Compliance frameworks
NIST CSF
Topics
Data Privacy Software & Technology

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