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VULNERABILITIES

CVE-2020-17519 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA: CISA-ADPCVSS-B:9.1 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-17519 CISA-ADPUS Government Resource
http://packetstormsecurity.com/files/160849/Apache-Flink-1.11.0-Arbitrary-File-Read-Directory-Traversal.html CVEExploitThird Party AdvisoryVDB Entry
https://lists.apache.org/thread.html/r0a433be10676f4fe97ca423d08f914e0ead341c901216f292d2bbe83%40%3Cissues.flink.apache.org%3E CVEMailing List
https://lists.apache.org/thread.html/r1125f3044a0946d1e7e6f125a6170b58d413ebd4a95157e4608041c7%40%3Cannounce.apache.org%3E CVEMailing List
https://lists.apache.org/thread.html/r229167538863518738e02f4c1c5a8bb34c1d45dadcc97adf6676b0c1%40%3Cdev.flink.apache.org%3E CVEIssue Tracking

see all 33 references

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability NameDate AddedDue DateRequired Action
Apache Flink Improper Access Control VulnerabilityMay 23, 2024Jun 13, 2024Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Weakness Enumeration

CWE-IDCWE NameSource
CWE-552Files or Directories Accessible to External Parties[email protected]
CWE-552Files or Directories Accessible to External Parties[email protected]

Affected Products

ProductVersions
apache flink
>= 1.11.0, < 1.11.3

CPE

  • cpe:2.3:a:apache:flink:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

31 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2020-17519
NVD Published Date:
Jan 5, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2020-17519 Details - Not Deferred