Vulnerability in Apache Airflow
CVE-2021-29621
Flask-AppBuilder is a development framework, built on top of Flask. User enumeration in database authentication in Flask-AppBuilder <= 3.2.3. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Upgrade to version 3.3.0 or higher to resolve.
EPSS: 0.034 (87.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Apache Airflow — versions 1.10.0
- Dpgaspar Flask-appbuilder — versions < 3.3.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
- security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (Product, Third Party Advisory, x_refsource_MISC)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
- security-advisories@github.com (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2021-29621?
- CVE-2021-29621 is a medium-severity vulnerability in Apache Airflow, classified under Observable Discrepancy. CVSS score: 5.3/10. Published 2021-06-07.
- How severe is CVE-2021-29621?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-29621 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.