Overview
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.
This vulnerability affects a common open-source component, third-party library, or a protocol used by different products. Please check with specific vendors for information on patching status. For more information, please see: https://lists.apache.org/thread/typ0h03zyfrzjqlnb7plh64df1g2383d; https://nvd.nist.gov/vuln/detail/CVE-2020-17519
Key Details
| Property | Value |
|---|---|
| CVE ID | CVE-2020-17519 |
| Vendor / Product | Apache — Flink |
| NVD Published | 2021-01-05 |
| NVD Last Modified | 2025-10-27 |
| CVSS 3.1 Score | 7.5 |
| CVSS 3.1 Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| Severity | HIGH |
| CWE | CWE-552 |
| CISA KEV Added | 2024-05-23 |
| CISA KEV Deadline | 2024-06-13 |
| Known Ransomware Use | No |
CVSS 3.1 Breakdown
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Required Action
CISA BOD 22-01 Deadline: 2024-06-13.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Timeline
| Date | Event |
|---|---|
| 2024-05-23 | Added to CISA Known Exploited Vulnerabilities catalog |
| 2024-06-13 | CISA BOD 22-01 remediation deadline |
References
| Resource | Type |
|---|---|
| NVD — CVE-2020-17519 | Vulnerability Database |
| CISA KEV Catalog Entry | US Government |