BlogPHP2Shell Exploitation: How Secure.com Can Protect YouRead more
← CVE Radar

CVE-2020-17519Apache Flink directory traversal attack: reading remote files through the REST API

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.

9.1 CRITICALEPSS 98.00%⚡ Known Exploited (CISA KEV)NVD: Analyzed

OverviewAffected ProductsReferences
NVD CVE.org

Overview

Severity

ScoreSeverityVersionVector String
9.1CRITICAL3.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
7.5HIGH3.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5.0MEDIUM2.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N

CISA required action

⚡ Known exploited · remediation due Jun 13, 2024

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Details

CVE ID
CVE-2020-17519
Status
Analyzed
Assigner (CNA)
apache
Published
Jan 5, 2021
Last modified
2026-06-17 02:59 UTC
Weaknesses
  • CWE-552 · Files or Directories Accessible to External Parties

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-07 14:03 UTC.