How severe is CVE-2020-17511?

CVE-2020-17511 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-17511 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-17511?

CVE-2020-17511 affects Apache Airflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-17511?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-17511 published?

CVE-2020-17511 was published on 2020-12-14 and last updated on 2026-06-17.

CVE-2020-17511

CVE-2020-17511 is a medium-severity vulnerability in Apache Airflow with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-312.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-312
Affected product: Apache Airflow
Published: 2020-12-14
Last modified: 2026-06-17

Description

In Airflow versions prior to 1.10.13, when creating a user using airflow CLI, the password gets logged in plain text in the Log table in Airflow Metadatase. Same happened when creating a Connection with a password field.

Frequently asked questions

What is CVE-2020-17511?: In Airflow versions prior to 1.10.13, when creating a user using airflow CLI, the password gets logged in plain text in the Log table in Airflow Metadatase. Same happened when creating a Connection with a password field.
How severe is CVE-2020-17511?: CVE-2020-17511 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-17511 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-17511?: CVE-2020-17511 affects Apache Airflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-17511?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-17511 published?: CVE-2020-17511 was published on 2020-12-14 and last updated on 2026-06-17.

References

https://lists.apache.org/thread.html/ree782a29d927b96bf0b39fb92e2f1f09ea3112a985f7a08ce93765ac%40%3Cusers.airflow.apache.org%3E

Affected products (1)

cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*

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