What is the CVSS score of CVE-2026-62183?

CVE-2026-62183 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of Apache Syncope are affected by CVE-2026-62183?

Apache Syncope's identity management platform contains a critical privilege escalation vulnerability (CVE-2026-62183, CVSS 9.8) affecting versions 3.0.0-4.1.1, with no public exploit identified at…

How to fix or mitigate CVE-2026-62183?

Within 24 hours, identify all Apache Syncope deployments and pinpoint instances running versions 3.0.0-M0 through 3.0.16, 4.0.0-M0 through 4.0.6, or 4.1.0-M0 through 4.1.1; immediately disable self-service registration and self-update workflows if using the all-Java adapter or Flowable adapter without mandatory admin approval, and restrict REST API access to authorized administrators through network access controls. Within 7 days, deploy WAF or API gateway rules to block unauthorized calls to Syncope role assignment endpoints, enable comprehensive audit logging for all identity API transactions, and establish alerting for suspicious role modification requests. Within 30 days, establish a vendor advisory monitoring process to detect patch release and plan migration to a fixed version; conduct a complete audit of all role assignments since deployment to identify unauthorized escalations, and implement permanent least-privilege constraints on self-service account modification capabilities.

Apache Syncope CVE-2026-62183

EUVD-2026-45962 CRITICAL

Improper Privilege Management (CWE-269)

2026-07-20 apache

GHSA-p386-8623-243g

Privilege Escalation Apache Java Apache Syncope Apache Software Foundation

9.8

CVSS 3.1 · Vendor: apache

Severity by source

Vendor (apache) PRIMARY

9.8 HIGH

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

vuln.today AI

9.8 CRITICAL

Network REST reachable and low-complexity; PR:N because the self-registration path can be pre-auth, and self-promotion to admin yields full C:H/I:H/A:H.

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

4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apache).

CVSS VectorVendor: apache

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Updated

Jul 21, 2026 - 16:29 vuln.today

v2 (cvss_changed)

Re-analysis Queued

Jul 21, 2026 - 16:22 vuln.today

cvss_changed

CVSS changed

Jul 21, 2026 - 16:22 NVD

9.8 (CRITICAL)

Analysis Generated

Jul 20, 2026 - 15:04 vuln.today

CVE Published

Jul 20, 2026 - 14:23 cve.org

HIGH

DescriptionCVE.org

Improper Privilege Management vulnerability in Apache Syncope.

When:

the all-Java user workflow adapter is configured, or
the Flowable user workflow adapter is configured, bearing a BPMN definition not requiring admin approval for user self registration of self update requests

the following scenario could happen. A REST API call can allow the user to grant themselves one or more of defined Roles, thus gaining their Entitlements and becoming in fact an administrator; the actual Entitlements gained depend on the Roles that are effectively defined on the specific Syncope deployment.

This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.6, from 4.1.0-M0 through 4.1.1.

Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue.

Articles & Coverage 4

News 4 New Java Vulnerabilities - 4 High Severity Patched Jul 21, 2026 News 6 New Apache Vulnerabilities - 6 High Severity, No POC Available Jul 21, 2026 News 4 New Java Vulnerabilities - 4 High Severity Jul 20, 2026 News 6 New Apache Vulnerabilities - 6 High Severity Jul 20, 2026

AnalysisAI

Privilege escalation in Apache Syncope's identity-management engine lets a self-service user grant themselves defined Roles via a single REST API call, effectively promoting a low-privileged or newly self-registered account to administrator. It affects deployments running the all-Java user workflow adapter, or the Flowable adapter with a BPMN definition that does not require admin approval for self-registration or self-update, across versions 3.0.0-M0-3.0.16, 4.0.0-M0-4.0.6, and 4.1.0-M0-4.1.1. The Apache-issued advisory rates it CVSS 9.8; no public exploit identified at time of analysis and it is not on CISA KEV.

Technical ContextAI

Apache Syncope is an open-source Identity Governance and Administration (IGA) platform that manages users, groups, Roles and their Entitlements, exposing operations through a REST API. Provisioning and lifecycle actions are driven by a pluggable 'user workflow adapter' - either the built-in all-Java adapter or the Flowable BPMN engine, where a BPMN process defines whether self-registration and self-update requests require administrative approval. The flaw is CWE-269 (Improper Privilege Management): the self-service registration/update path fails to prevent a caller from including Role assignments in the request, so the workflow honors an attacker-controlled Role grant that should be an administrator-only operation. The affected component is cpe:2.3:a:apache_software_foundation:apache_syncope, and the concrete impact depends on which Roles (and their bundled Entitlements) are actually defined on the specific deployment.

RemediationAI

Vendor-released patch: upgrade to Apache Syncope 4.0.7 or 4.1.2, which fix the issue per the Apache advisory (https://lists.apache.org/thread/6r8cngvy43y2yk4jj3w060dt8vx0yzpr); 3.0.x deployments (through 3.0.16) should migrate to a fixed 4.0.7/4.1.2 release, as no fixed 3.0.x version is cited in the input. Where immediate patching is not possible, the actionable compensating control is to change the workflow configuration so self-service cannot self-assign privileges: if using the Flowable adapter, edit the BPMN user-workflow definition to require administrator approval for self-registration and self-update requests (trade-off: adds manual approval latency to legitimate onboarding); if using the all-Java adapter, restrict or disable anonymous/self-service registration and self-update endpoints and route role changes through admin-only flows (trade-off: removes self-service convenience). Additionally, restrict network access to the Syncope REST API and audit existing user Role assignments for anomalous self-granted administrative Roles before and after remediation.