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Critical severity9.8NVD Advisory· Published Jul 20, 2026· Updated Jul 27, 2026

CVE-2026-53421

CVE-2026-53421

Description

Improper Isolation or Compartmentalization vulnerability in Apache Syncope.

An administrator with adequate entitlements can achieve remote code execution through the connector subsystem by relying on scripted connectors' (REST and SQL) capability to run Groovy scripts.

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 by hardening the Groovy security sandbox.

Affected products

2
  • Apache/Syncopellm-fuzzy2 versions
    >=3.0.0-M0 <=3.0.16, >=4.0.0-M0 <=4.0.6, >=4.1.0-M0 <=4.1.1+ 1 more
    • (no CPE)range: >=3.0.0-M0 <=3.0.16, >=4.0.0-M0 <=4.0.6, >=4.1.0-M0 <=4.1.1
    • cpe:2.3:a:apache:syncope:*:*:*:*:*:*:*:*range: >=3.0.0,<=3.0.16

Patches

Vulnerability mechanics

References

2

News mentions

1