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CVE-2026-40172

🗓️ 22 May 2026 19:00:52Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 57 Views🌐 WEB

Privilege escalation via user PATCH allows superuser group assignment without enable_group_superuser; fixed in 2026.2.3.

Related
Detection
Affected
Refs
Paths
Vulners
Node
OR
goauthentikauthentikRange<2025.12.5
goauthentikauthentikRange2026.2.0-rc12026.2.3
[
  {
    "vendor": "goauthentik",
    "product": "authentik",
    "versions": [
      {
        "version": "< 2025.12.5",
        "status": "affected"
      },
      {
        "version": ">= 2026.2.0-rc1, < 2026.2.3",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
groupsrequest body/api/v3/core/users/{pk}/PATCH endpoint to assign arbitrary groups including is_superuser via UserSerializer, enabling privilege escalation.CWE-269
is_superuserrequest body/api/v3/core/users/{pk}/PATCH endpoint to assign arbitrary groups including is_superuser via UserSerializer, enabling privilege escalation.CWE-269
UserSerializer fieldsrequest body/api/v3/core/users/{pk}/PATCH endpoint to assign arbitrary groups including is_superuser via UserSerializer, enabling privilege escalation.CWE-269

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23 Jul 2026 16:10Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.1
EPSS0.00535
SSVC
57