ClosedPatched

Apache Flink Improper Access Control

Apache Flink

Apache Flink contains an improper access control vulnerability that allows an attacker to read any file on the local filesystem of the JobManager through its REST interface. Added to the CISA KEV catalog on 2024-05-23. CVE-2020-17519 was assigned before 2024; the KEV listing came in 2024.

Why this severity: CVSS 9.1 (v3.1, CISA-ADP), actively exploited (CISA KEV)

Started: May 23, 2024
Closed: May 23, 2024
CVE: CVE-2020-17519

Follow this incident

Updated May 23, 2024

Affected

See vendor advisory (versions are not listed in the KEV record)

Fixed in

See vendor advisory linked in sources

Timeline1

May 23, 2024
CISA added CVE-2020-17519 to the KEV catalog (federal deadline 2024-06-13)
Source

Advisories3

Notes & caveats

Derived from the CISA KEV JSON feed (catalogVersion 2026.10.21); CVSS from the CVE record (cveawg.mitre.org). startedAt is the CVE publication date when it fell in 2024 before the KEV listing, else the KEV dateAdded; exploitation may have begun earlier. closedAt is the KEV listing date (a fix or mitigation was available then unless noted).

Get an email when a new major security incident drops. No spam, unsubscribe any time.

Get notified