CVE-2025-13473CWE-208

Username enumeration through timing difference in mod_wsgi authentication handler

Medium · published February 3, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
56.5
In the wild
Unconfirmed
What it is

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28.

The `django.contrib.auth.handlers.modwsgi.check_password()` function for authentication via `mod_wsgi` allows remote attackers to enumerate users via a timing attack.

Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.

Django would like to thank Stackered for reporting this issue.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00810 · 56.5th percentile
Weakness
CWE-208 · Observable Timing Discrepancy
Published
2026-02-03T14:32Z
EPSS history
Timeline
  • 03 FEB 14:32Z
    Username enumeration through timing difference in mod_wsgi authentication handler
    cvelistv5