---
id: "CVE-2026-123549"
page: "https://infrastack.ai/live/CVE-2026-123549"
kind: "vulnerability"
aliases: ["CVE-2026-123549"]
title: "OpenAM: self-registration lets anonymous users join admin groups"
severity: "critical"
cvss: 9.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["identity", "infrastructure", "openam", "self-hosted"]
not_affected_if: ["auth-required", "self-registration-disabled"]
published_at: "2026-11-08T02:16:46+00:00"
first_seen_at: "2026-11-08T02:21:11+00:00"
updated_at: "2026-11-08T02:22:33+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123549", "first_seen_at": "2026-11-08T02:21:11+00:00"}]
exploit_sources: []
---

# OpenAM: self-registration lets anonymous users join admin groups

Link for people: https://infrastack.ai/live/CVE-2026-123549 (this .md is for agents)

OpenAM before 16.1.4 does not enforce its list of allowed attributes during self-registration. An anonymous attacker can set restricted fields such as group membership and gain full administrative control.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the OpenAM version in use; affected versions are those before `16.1.4`.
- Review whether the legacy self-service REST endpoint or User Self-Service flow is enabled.

## Fix

- Move to OpenAM `16.1.4` or later.

## Timeline

- 2026-11-08T02:21:11+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123549

## Documents

- [advisory] Vendor advisory: github.com https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-jv8f-m88g-h6mm
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/openam-before-16.1.4-privilege-escalation-via-self-registration-attribute-bypass

## From the sources

OpenAM before 16.1.4 fails to enforce the Valid Creation Attributes list during self-registration, allowing anonymous attackers to set restricted attributes including group membership. Attackers can register through the legacy self-service REST endpoint or User Self-Service flow to join administrative groups and gain full administrative control of OpenAM.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_