# Flink vulnerabilities

> Flink is made by Apache. We track 3 published vulnerabilities listed under that exact name, across 81 versions. 1 of them is on the list of flaws known to be exploited, the newest added on 23 May 2024. Apache lists newer releases under their own names, such as Flink Stateful Functions, so check those pages too.

Canonical page: https://www.edgeprotect.io/product/apache/flink

## At a glance

- **Made by:** [Apache](https://www.edgeprotect.io/vendors/apache)
- **Published vulnerabilities:** 3
- **Known to be exploited:** 1 (listed under the name Flink)
- **Versions tracked:** 81
- **Most recently added to the known-exploited list:** [CVE-2020-17519](https://www.edgeprotect.io/what-is/cve-2020-17519), 23 May 2024. We keep watching the list.

## Is Flink listed under other names?

Apache also lists Flink under more specific names, such as Flink Stateful Functions. Flaws listed only under those names are counted on their own pages, not here.

- [Flink Stateful Functions](https://www.edgeprotect.io/product/apache/flink_stateful_functions): 1 published vulnerability

## Which versions of Flink do the exploited flaws hit?

Each exploited flaw lists the versions it affects, as published. "1.11.0 to before 1.11.3" means from 1.11.0 up to, but not including, 1.11.3.

- [CVE-2020-17519](https://www.edgeprotect.io/what-is/cve-2020-17519) (Apache Flink Improper Access Control Vulnerability): 1.11.0 to before 1.11.3

## Which Flink vulnerabilities are being exploited?

1 flaw is on the government list of vulnerabilities known to be exploited, newest first:

- [CVE-2020-17519](https://www.edgeprotect.io/what-is/cve-2020-17519): Apache Flink Improper Access Control Vulnerability. High, CVSS 7.5, chance of use in 30 days 98%, known exploited since 23 May 2024.

## Which Flink flaws are most likely to be used?

Ranked by the latest exploit-likelihood forecast (the chance each flaw is used in an attack in the next 30 days):

- [CVE-2020-17519](https://www.edgeprotect.io/what-is/cve-2020-17519): 98%, High (CVSS 7.5), known exploited
- [CVE-2020-17518](https://www.edgeprotect.io/what-is/cve-2020-17518): 50%, High (CVSS 7.5)
- [CVE-2020-1960](https://www.edgeprotect.io/what-is/cve-2020-1960): 0.9%, Medium (CVSS 4.7)
- [CVE-2026-35194](https://www.edgeprotect.io/what-is/cve-2026-35194): 0.4%, High (CVSS 8.1)

## Questions

### How many vulnerabilities does Flink have?

We track 3 published vulnerabilities listed under the name Flink, across 81 versions. The most recent Flink flaw added to the known-exploited list is CVE-2020-17519, on 23 May 2024.

### Which Flink vulnerabilities are being exploited?

1 is on the list of flaws known to be exploited. The most recently added is CVE-2020-17519.

### Why are newer Flink flaws missing from this page?

Apache also lists Flink under more specific names, such as Flink Stateful Functions. Flaws listed only under those names are counted on their own pages, not here. Open the release you run to see its own list.

### Which versions of Flink do the exploited flaws affect?

Each flaw names its own versions, usually as ranges. The newest, CVE-2020-17519, affects 1.11.0 to before 1.11.3. The versions for every exploited flaw are listed on this page.

### How do I get alerts for Flink?

Create a EdgeProtect account and track Flink. We match it against every published flaw, give each one a risk score from 0 to 100 and keep watching, so you hear about new ones as soon as we know, by email, in the app or by webhook.

## Running Flink?

EdgeProtect keeps checking for you:

- **Tell us what you run.** Pick your software from a list, or let us work it out from your website.
- **We match it to every flaw.** Over 400,000 published flaws, checked against your list.
- **Ranked by real-world risk.** Every flaw gets a 0 to 100 risk score, kept up to date, led by evidence criminals are using it.
- **Told as soon as we know.** An alert by email, in the app or by webhook to your own tools.

Start free (no card, nothing to install): https://www.edgeprotect.io/register
Book a demo: https://www.edgeprotect.io/contact

