CVE-2020-17519
CriticalPublished
Apache Flink directory traversal attack: reading remote files through the REST API
- Published
- Jan 5, 2021
- Updated
- Oct 21, 2025
- Assigning CNA
- apache
- Evidence observed
- Jan 8, 2021
Primary CVSS
9.1/ 10Critical
Apache Flink directory traversal attack: reading remote files through the REST API
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HHigh · next 30 days
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
This CVE appears in the CISA Known Exploited Vulnerabilities catalog.
A change introduced in Apache Flink 1.11.0 (and released in 1.11.1 and 1.11.2 as well) allows attackers to read any file on the local filesystem of the JobManager through the REST interface of the JobManager process. Access is restricted to files accessible by the JobManager process. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit b561010b0ee741543c3953306037f00d7a9f0801 from apache/flink:master.
modules/auxiliary/scanner/http/apache_flink_jobmanager_traversal.rb
flink/CVE-2020-17519
Apache Flink `jobmanager/logs` Path Traversal (CVE-2020-17519)
http/cves/2020/CVE-2020-17519.yaml
Apache Flink 目录遍历漏洞批量检测 (CVE-2020-17519)
Python-based directory traversal exploit for CVE-2020-17519 (Apache Flink) with multi-threading, proxy support, and configurable depth for retrieving log files from vulnerable targets.
[CVE-2020-17519] Apache Flink RESTful API Arbitrary File Read
A vulnerability scanner that detects CVE-2020-17519 vulnerabilities.
CVE-2020-17519; Apache Flink 任意文件读取; 批量检测
Use vulnerability information only on systems you own or are authorized to test. Kitploit links to public research metadata and does not store exploit code or malicious payloads.
Metasploit auxiliary module exploiting CVE-2020-17519 for unauthenticated directory traversal in Apache Flink, enabling arbitrary file read via HTTP scanner.
Nmap NSE script for detecting and exploiting Apache Flink directory traversal vulnerability (CVE-2020-17519) during network reconnaissance and penetration testing.
CVE-2020-17519 Cheetah
Exploit for CVE-2020-17519 targeting Apache Flink directory traversal vulnerability. Enables unauthenticated remote file read for security testing and vulnerability verification.
CVE-2020-17519 EXP
Exploit for Apache Flink CVE-2020-17519 targeting directory traversal vulnerability in versions 1.11.2 and earlier, enabling unauthorized file read on the server.
Proof-of-concept exploit for CVE-2020-17519, a local file inclusion vulnerability in Apache Flink, enabling unauthorized file read access.
SunCSR Team · java · Jan 8, 2021