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TI-2024-30164 Aliases CVE-2024-45052GHSA-2h46-8gf5-fmxv

Fides Webserver Authentication Timing-Based Username Enumeration Vulnerability

Priority MEDIUM 63CWE-208Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-208.

Summary

Fides is an open-source privacy engineering platform. Prior to version 2.44.0, a timing-based username enumeration vulnerability exists in Fides Webserver authentication. This vulnerability allows an unauthenticated attacker to determine the existence of valid usernames by analyzing the time it takes for the server to respond to login requests. The discrepancy in response times between valid and invalid usernames can be leveraged to enumerate users on the system. This vulnerability enables a timing-based username enumeration attack. An attacker can systematically guess and verify which usernames are valid by measuring the server's response time to authentication requests. This information can be used to conduct further attacks on authentication such as password brute-forcing and credential stuffing. The vulnerability has been patched in Fides version `2.44.0`. Users are advised to upgrade to this version or later to secure their systems against this threat. There are no workarounds.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00557 46th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed fides (ethyca): 2.44.0ethyca-fides (PyPI): 2.44.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
ethycafidesbefore 2.44.02.44.0Patch availableCNA
—ethyca-fides (PyPI)before 2.44.02.44.0Patch availableGHSA-2h46-8gf5-fmxv
  • fides Vendorethyca Affected before 2.44.0 Fixed in 2.44.0 Patch available CNA
  • ethyca-fides (PyPI) Vendor— Affected before 2.44.0 Fixed in 2.44.0 Patch available GHSA-2h46-8gf5-fmxv

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ethyca:fides:*:*:*:*:*:*:*:*before 2.44.0Vulnerableethyca
  • cpe:2.3:a:ethyca:fides:*:*:*:*:*:*:*:* Versions before 2.44.0 Vulnerable ·ethyca

Remediation

  • Fix · CNA fides (ethyca) Fixed in 2.44.0
  • Fix · GHSA-2h46-8gf5-fmxv ethyca-fides (PyPI) Fixed in 2.44.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-45052
  2. 2026-10-03 Alias added: GHSA-2h46-8gf5-fmxv

References

Exploit 1

Patch 1

Other 1

  • TI-2024-30165 Remote Code Execution Vulnerability via SSTI in Fides Webserver Jinja Email Templating Engine CVSS 3.1CRITICAL 9.1
  • TI-2024-20599 Fides Information Disclosure Vulnerability in Privacy Center of SERVER_SIDE_FIDES_API_URL CVSS 3.1MEDIUM 5.3
  • TI-2024-23262 Sensitive Data Disclosure Vulnerability in Connection Configuration Endpoints in Fides CVSS 3.1MEDIUM 6.5
  • TI-2023-26088 Cryptographically Weak Generation of One-Time Codes for Identity Verification in ethyca-fides CVSS 3.1CRITICAL 9.1
  • TI-2025-35700 Fides Webserver API is Vulnerable to OAuth Client Privilege Escalation CVSS 4.0HIGH 8.6
  • TI-2024-25772 Inclusion of Untrusted polyfill.io Code Vulnerability in fides.js CVSS 3.1CRITICAL 9.8
See all 19 →

Sources

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