synced 11 MIN AGO
01 Record

CVE-2026-40172

authentik: Privilege Escalation via User PATCH: Superuser Group Assignment Bypasses enable_group_superuser

HighPUBLISHEDCNA: GitHub_M
CNA base score8.1 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

02 Description

authentik: Privilege Escalation via User PATCH: Superuser Group Assignment Bypasses enable_group_superuser

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.54% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 45.4% of scored records. A rank, not a probability.
NVD base score
8.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
NVD analysis status
Deferred. NVD last modified this record on 2026-07-23.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-05-22 19:00Z5 MO AGO
Last updated
2026-05-22 19:15Z5 MO AGO
Reserved
2026-04-09
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
High (CVSS 8.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Weaknesses
  • CWE-269Improper Privilege ManagementClass
Data version
5.2
Document digest
25014531cbcc5d38c24ef046d39a544f5ebd50fb045dabe915af246e0416c4fc

05 Affected products

VendorProductVersionsPlatforms
goauthentikauthentik< 2025.12.5, >= 2026.2.0-rc1, < 2026.2.3—

06 References