CVE-2026-43515

Apache Tomcat: Security constraints not correctly applied

At a glance

Severity: CRITICAL 9.1
EPSS: EPSS 1.22 % · percentile 69 (2026-10-27)
State: PUBLISHED
Published: 2026-05-12
Updated: 2026-06-04
Assigner: apache
NVD status: Analyzed

Description

Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	CRITICAL 9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	CISA-ADP
CVSS 3.1	CRITICAL 9.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-285

Advisories

GHSA-5m62-pw8w-7w9f — Apache Tomcat - Security constraints not correctly applied

European references

ENISA EUVD · EUVD-2026-29519
GCVE · GCVE-0-2026-43515

CERT-FR advisories

CERTFR-2026-AVI-1165 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2026-AVI-0986 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2026-AVI-0877 — Multiples vulnérabilités dans les produits SAP · cert.ssi.gouv.fr
CERTFR-2026-AVI-0773 — Multiples vulnérabilités dans les produits Atlassian · cert.ssi.gouv.fr
CERTFR-2026-AVI-0577 — Multiples vulnérabilités dans Apache Tomcat · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 7.0.0 ≤ 7.0.109
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 8.5.0 ≤ 8.5.100
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 9.0.0 < 9.0.118
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 10.1.0 < 10.1.55
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:* ≥ 11.0.0 < 11.0.22

Affected products

Product	Versions
Apache Software Foundation · Apache Tomcat	affected 11.0.0-M1 ≤ 11.0.21 ; affected 10.1.0-M1 ≤ 10.1.54 ; affected 9.0.0.M1 ≤ 9.0.117 ; affected 8.5.0 ≤ 8.5.100 ; affected 7.0.0 ≤ 7.0.109 ; unknown 0 < 7.0.0

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD