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CVE

CVE-2026-62183

Apache Syncope: User self-service privilege escalation
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CVE

CVE-2026-62183

Apache Syncope: User self-service privilege escalation

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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Related Resources

No items found.

References

http://www.openwall.com/lists/oss-security/2026/07/20/9, https://repo.maven.apache.org/maven2, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62183.json, https://lists.apache.org/thread/6r8cngvy43y2yk4jj3w060dt8vx0yzpr, https://nvd.nist.gov/vuln/detail/CVE-2026-62183

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.0069%
EPSS Percentile
0.51172%
Introduced Version
7afe57a317c88ebedf75ca8d714ad743e5cd1d24,3.0.0-M0,4.0.0-M0,4.1.0-M0
Fix Available
1607ab1fff8542e6fdd634ff68b9afd03d80dd8c,4.0.7,4.1.2

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