Information disclosure in Flink - CVE-2020-17519

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Main Vulnerability Database Vulnerabilities #VU49273

Information disclosure in Flink - CVE-2020-17519

Published: January 5, 2021 / Updated: August 1, 2025


Vulnerability identifier: #VU49273
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/U:Green
CVE-ID: CVE-2020-17519
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability: The vulnerability is being exploited in the wild
Vendor: Apache Foundation
Affected software:
Flink

Detailed vulnerability description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to application allows to read arbitrary files on the system of the JobManager through the REST interface of the JobManager process. A remote user can send a specially crafted HTTP request and read arbitrary files on the system.


How to mitigate CVE-2020-17519

Install updates from vendor's website.

Sources