CVE-2026-24733
Apache Tomcat: Security constraint bypass with HTTP/0.9
En bref Sévérité MEDIUM 6.5 EPSS EPSS 0.55 % · centile 46 (2026-10-27) État PUBLISHED Publiée 2026-02-17 Mise à jour 2026-03-11 Attribuée par apache Statut NVD Modified Description Improper Input Validation vulnerability in Apache Tomcat.
Tomcat did not limit HTTP/0.9 requests to the GET method. If a security
constraint was configured to allow HEAD requests to a URI but deny GET
requests, the user could bypass that constraint on GET requests by
sending a (specification invalid) HEAD request using HTTP/0.9.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.14, from 10.1.0-M1 through 10.1.49, from 9.0.0.M1 through 9.0.112.
Older, EOL versions are also affected.
Users are recommended to upgrade to version 11.0.15 or later, 10.1.50 or later or 9.0.113 or later, which fixes the issue.
Scores Version Score Vecteur Évalué par CVSS 3.1 MEDIUM 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CISA-ADP CVSS 3.1 LOW 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N NVD · nvd@nist.gov (Primary) CVSS 3.1 MEDIUM 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
Faiblesses (CWE)
Avis
Références européennes
Avis du CERT-FR
Configurations affectées (CPE NVD) cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 9.0.1 < 9.0.113cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 10.1.1 < 10.1.50cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 11.0.1 < 11.0.15cpe:2.3:a:apache:tomcat:9.0.0:milestone1:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone2:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone3:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone4:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone10:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone2:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone3:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone4:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone5:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone6:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone7:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone8:*:*:*:*:*:*cpe:2.3:a:apache:tomcat:10.0.0:milestone9:*:*:*:*:*:*+26 autres Produits affectés
Références
Sources
