GHSA-2h46-8gf5-fmxv · Severity: low · Ecosystem: pip — Timing-Based Username Enumeration Vulnerability in Fides Webserver Authentication
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.
Conclusion & alert: CVE-2024-45052 is rated Exploit Available (50.9/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.55%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.36% | 0.55% | +0.20% |
| 2 | 2026-01-24 | 0.26% | 0.36% | +0.09% |
| 3 | 2025-11-21 | — | 0.26% | — |
Full EPSS history (12 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
GHSA-2h46-8gf5-fmxv · Severity: low · Ecosystem: pip — Timing-Based Username Enumeration Vulnerability in Fides Webserver Authentication
| URL | Tags |
|---|---|
| https://github.com/ethyca/fides/commit/457b0e9df9f0d337133d6078bca6ed88bbc745f4 | Patch |
| https://github.com/ethyca/fides/security/advisories/GHSA-2h46-8gf5-fmxv | Exploit Vendor Advisory |