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EUVD-2026-214289

fkie_cve-2023-29005

Flask-AppBuilder versions before 4.3.0 lack rate limiting which can allow an attacker to brute-force user credentials. Version 4.3.0 includes the ability to enable rate limiting using `AUTH_RATE_LIMITED = True`, `RATELIMIT_ENABLED = True`, and setting an `AUTH_RATE_LIMIT`.

GHSA-9hcr-9hcv-x6pv — Flask-AppBuilder Has No Rate Limiting on Login AUTH DB

Affected: PyPI: Flask-AppBuilder

### Impact Lack of rate limiting will allow an attacker to brute-force user credentials.

### Patches Ability to enable rate limiting on Flask-AppBuilder >= 4.3.0. Use `AUTH_RATE_LIMITED = True` and `RATELIMIT_ENABLED = True` set the limit itself by using `AUTH_RATE_LIMIT`. Will apply only to database authentication.

### Workarounds Implement rate limiting using a reverse proxy or other strategies.

gsd-2023-29005

PYSEC-2026-1380 — Flask-AppBuilder Has No Rate Limiting on Login AUTH DB

Affected: PyPI: flask-appbuilder

### Impact Lack of rate limiting will allow an attacker to brute-force user credentials.

### Workarounds Implement rate limiting using a reverse proxy or other strategies.