CVE-2026-49443CWE-287

authentik: `UserSourceConnection.user` and `GroupSourceConnection.group` are changeable through the API

High · published June 2, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
37.3
In the wild
Unconfirmed
What it is

authentik is an open-source identity provider. Prior to versions 2025.12.6, 2026.2.4, and 2026.5.1, an attacker with the ability to change a source connection, and an account in one of the configured sources can log into any account. This issue has been patched in versions 2025.12.6, 2026.2.4, and 2026.5.1.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00441 · 37.3th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-06-02T20:31Z
EPSS history
Timeline
  • 02 JUN 20:31Z
    authentik: `UserSourceConnection.user` and `GroupSourceConnection.group` are changeable through the API
    cvelistv5