CVE-2026-43512

Apache Tomcat: Digest authenticator will authenticate any unknown user

At a glance

Severity: CRITICAL 9.8
EPSS: EPSS 1.33 % · percentile 71 (2026-10-27)
State: PUBLISHED
Published: 2026-05-12
Updated: 2026-05-14
Assigner: apache
NVD status: Analyzed

Description

DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication 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 before 7.0.0. Older unsupported versions any also be affect 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 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP
CVSS 3.1	CRITICAL 9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-592

Advisories

GHSA-h6fc-48rj-7qqh — Apache Tomcat - Digest authenticator will authenticate any unknown user

European references

ENISA EUVD · EUVD-2026-29516
GCVE · GCVE-0-2026-43512

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