CVE-2026-63071

criticalCVSS 9.8covered by 1 sourcefirst seen 2026-07-20

Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator with adequate entitlements for Implementations can create a malicious Groovy class containing untrusted code bypassing the Groovy security sandbox. 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 tightening the Groovy security sandbox.

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Exploitation outlook

Low exploitation risk0.44% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 36% of all EPSS-scored CVEs.

Advisory coverage (1)

criticalCVE-2026-63071: Improper Isolation or Compartmentalization vulnerability in Apache Syncope. An administrator w…nvd · 2026-07-20

External references

NVD record for CVE-2026-63071

CVE.org record

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