CVE Watch10 ago 2026

CVE-2026-34486

Apache Tomcat Missing Encryption of Sensitive Data Vulnerability

CVSS

7.5

Alto

EPSS

98.6%

p100

KEV

SÍ

4 ago 2026

Exploit Today

0-100

Publicado: 9 abr 2026 · Última mod.: 10 ago 2026 · CWE-311 · CWE-807

EPSS · 30d

42.6%EPSS · 30 días98.6%

2026-08-022026-08-30

Ficha del catálogo KEV

Producto

Apache / Tomcat

Vulnerabilidad

Apache Tomcat Missing Encryption of Sensitive Data Vulnerability

Añadido a KEV

4 ago 2026

Remediar antes de

7 ago 2026

Uso conocido en ransomware

Descripción resumida

Apache Tomcat contains a missing encryption of sensitive data vulnerability that allows the bypass of the EncryptInterceptor. This vulnerability can be chained with CVE‑2025‑24813.

Acción requerida

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Notas

https://lists.apache.org/thread/9510k5p5zdvt9pkkgtyp85mvwxo2qrly ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-34486

Descripción técnica

Missing Encryption of Sensitive Data vulnerability in Apache Tomcat due to the fix for CVE-2026-29146 allowing the bypass of the EncryptInterceptor. This issue affects Apache Tomcat: 11.0.20, 10.1.53, 9.0.116. Users are recommended to upgrade to version 11.0.21, 10.1.54 or 9.0.117, which fix the issue.

Referencias oficiales

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