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CVE-2026-72537— Authentik Security authentik - Privilege Escalation

Quick assessment

Affected
Authentik Security authentik
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Authentik Security authentik是Authentik Security组织的一个用于现代 SSO 的开源身份提供商 (IdP)。 Authentik Security authentik 2026.5.6及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于SCIM用户摄取功能未验证范围边界，攻击者可利用有限的SCIM配置令牌接管任何用户账户（包括超级用户），导致权限提升。

CVSS 8.8 · High EPSS 0.40% · P32

Affected Version Matrix 1

VendorProduct Version RangeStatus
Authentik Security authentik ≤ 2026.5.6 affected
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I. Basic Information for CVE-2026-72537

Vulnerability Information
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Vulnerability Title
Authentik Security authentik - Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
A privilege escalation vulnerability in Authentik Security authentik through 2026.5.6 allows an attacker with a source-scoped SCIM provisioning token to take over any user account including superusers by provisioning a SCIM user that matches an existing local user by username. The SCIM user ingest function adopts pre-existing local accounts by username without validating scope boundaries. An attacker can rewrite or delete any account, including the superuser, using only a limited provisioning credential.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Authentik Security authentik 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Authentik Security authentik是Authentik Security组织的一个用于现代 SSO 的开源身份提供商 (IdP)。 Authentik Security authentik 2026.5.6及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于SCIM用户摄取功能未验证范围边界，攻击者可利用有限的SCIM配置令牌接管任何用户账户（包括超级用户），导致权限提升。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Authentik Security authentik 0 ~ 2026.5.6 -

II. Public POCs for CVE-2026-72537

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 10579 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-72537

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Vendor Pages for CVE-2026-72537 (1)

IV. Related Vulnerabilities

Same product: authentik
Same vendor: Authentik Security
Same weakness: CWE-269

V. Comments for CVE-2026-72537

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