CVE-2020-17518
⚠️ highSummary
Apache Flink 1.5.1 introduced a REST handler that allows you to write an uploaded file to an arbitrary location on the local file system, through a maliciously modified HTTP HEADER. The files can be written to any location accessible by Flink 1.5.1. 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 a5264a6f41524afe8ceadf1d8ddc8c80f323ebc4 from apache/flink:master.
CVSS Score
7.5
High
EPSS Score
93.8
Exploit Probability
Published Date
2021-01-05
First Seen: 2026-01-05
📊 Relative Risk Intelligence
This CVE is Moderate Risk - more severe than 69.0% of all 328,009 vulnerabilities in our database.
#101,817
Above average severity
Severity Percentile
Last Modified
2024-11-21
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N