Vulnerability details
CVE-2026-43512
Apache Software Foundation Apache Tomcat
Apache Tomcat: Digest authenticator will authenticate any unknown user
CVSS 3.1
9.8Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat | v < 7.0.0 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 10.1.0-M1 ≤ v ≤ 10.1.54 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 11.0.0-M1 ≤ v ≤ 11.0.21 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 7.0.0 ≤ v ≤ 7.0.109 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 8.5.0 ≤ v ≤ 8.5.100 | CVEProject cvelistV5 (CNA) |
| Apache Software Foundation | Apache Tomcat | 9.0.0.M1 ≤ v ≤ 9.0.117 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-05-12
- Last updated
- 2026-05-14
- State
- Published
- Assigner (CNA)
- apache
Exploit prediction (EPSS)
1.32%
Probability of exploitation in 30 days
71.1%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-592DEPRECATED: Authentication Bypass Issues