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Intelligence for Africa and the Gulf

AEGLIX vulnerability intelligence

CVE-2020-17519

HIGH · CVSS 7.5 · Analyzed

Published: 2021-01-05 · Updated: 2026-06-17 · Source: NVD

Vulnerability overview

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.

Severity and scoring

CVSS score
7.5 · HIGH
CVSS version
3.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-552

CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.

Known exploitation and remediation

Listed in CISA’s Known Exploited Vulnerabilities catalog.

Affected product
Apache · Flink
Added to catalog
2024-05-23
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA remediation due date
2024-06-13

CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.

Verify affected versions and patch availability in the vendor advisory before making changes.

Affected products and versions

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

    From (inclusive): 1.11.0

    Before (exclusive): 1.11.3

These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.

Advisories and references

Explore official sources

Read the official NVD record ↗

Explore the CISA catalog ↗

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