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CVE-2020-1938

tomcat: Apache Tomcat AJP File Read/Inclusion Vulnerability

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Severity

Important

Red Hat Product Security

7.6

CVSS 3.1

Review impact separately from score.

Published · February 20, 2020

Updated · August 5, 2026

Description

CVE-2020-1938 is a file read/inclusion vulnerability in the AJP connector in Apache Tomcat. This is enabled by default with a default configuration port of 8009. A remote, unauthenticated attacker could exploit this vulnerability to read web application files from a vulnerable server. In instances where the vulnerable server allows file uploads, an attacker could upload malicious JavaServer Pages (JSP) code within a variety of file types and trigger this vulnerability to gain remote code execution (RCE).

Statement

Please refer to the Red Hat knowledgebase article: https://access.redhat.com/solutions/4851251 and CVE page https://access.redhat.com/security/cve/cve-2020-1745

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Please refer to the Red Hat knowledgebase article: https://access.redhat.com/solutions/4851251

CVSS / CWE

CVSS 3.1 · 7.6
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L

CVSS 3.1 · 6.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

CWE-285 · Improper Authorization