CVE-2026-72534Network attack vectorHinoki check available

Superuser escalation via SCIM group name collision

Published Aug 11, 2026 · Updated Aug 11, 2026

Privilege escalation in Authentik Security authentik 2026.5.6 and earlier allows remote authenticated users to gain superuser access. The SCIM group ingest function adopts an existing group solely by matching its name, then replaces membership without checking the source scope. A source-scoped SCIM provisioning token can therefore acquire full IdP superuser access and remove existing administrators.

CVSS severity8.8
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Privilege escalation in Authentik Security authentik 2026.5.6 and earlier allows remote authenticated users to gain superuser access. The SCIM group ingest function adopts an existing group solely by matching its name, then replaces membership without checking the source scope. A source-scoped SCIM provisioning token can therefore acquire full IdP superuser access and remove existing administrators.

The record

CVE
CVE-2026-72534
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
Authentik Security
Product
authentik
Classifications
CWE-269, T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2026.5.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Authentik Security · authentikversion=0 <=2026.5.6

Published CVSS scores

8.8TuranSecCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1098Account Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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