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TI-2023-13466 Aliases CVE-2023-29005GHSA-9hcr-9hcv-x6pv

No Rate Limiting on Login AUTH DB

Priority MEDIUM 40CWE-307Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-307.

Summary

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`.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00629 50th percentileScored 2026-11-07
Fix Fixed Flask-AppBuilder (dpgaspar): 4.3.0Flask-AppBuilder (PyPI): 4.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
dpgasparFlask-AppBuilderbefore 4.3.04.3.0Patch availableCNA
—Flask-AppBuilder (PyPI)before 4.3.04.3.0Patch availableGHSA-9hcr-9hcv-x6pv
  • Flask-AppBuilder Vendordpgaspar Affected before 4.3.0 Fixed in 4.3.0 Patch available CNA
  • Flask-AppBuilder (PyPI) Vendor— Affected before 4.3.0 Fixed in 4.3.0 Patch available GHSA-9hcr-9hcv-x6pv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:*before 4.3.0Vulnerabledpgaspar
  • cpe:2.3:a:dpgaspar:flask-appbuilder:*:*:*:*:*:*:*:* Versions before 4.3.0 Vulnerable ·dpgaspar

Remediation

  • Fix · CNA Flask-AppBuilder (dpgaspar) Fixed in 4.3.0
  • Fix · GHSA-9hcr-9hcv-x6pv Flask-AppBuilder (PyPI) Fixed in 4.3.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-29005
  2. 2026-10-03 Alias added: GHSA-9hcr-9hcv-x6pv
  3. 2026-10-29 EPSS moved to the 50th–90th percentile

References

Advisory 2

Other 4

  • TI-2024-17946 Flask-AppBuilder's OAuth login page subject to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 6.1
  • TI-2024-16581 Flask-AppBuilder incorrect authentication when using auth type OpenID CVSS 3.1CRITICAL 9.1
  • TI-2021-18097 Improper Authentication in Flask-AppBuilder CVSS 3.1HIGH 8.8
  • TI-2021-12470 URL Redirection to Untrusted Site ('Open Redirect') in Flask-AppBuilder CVSS 3.1HIGH 7.2
  • TI-2022-06037 Observable Response Discrepancy in Flask-AppBuilder CVSS 3.1MEDIUM 5.3
  • TI-2021-10329 Observable Response Discrepancy in Flask-AppBuilder CVSS 3.1MEDIUM 5.3
See all 12 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences