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CVE

CVE-2026-53421

Apache Syncope: Remote Code Execution via Scripted Connector
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CVE

CVE-2026-53421

Apache Syncope: Remote Code Execution via Scripted Connector

Improper Isolation or Compartmentalization vulnerability in Apache Syncope.

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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.

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Users are recommended to upgrade to version 4.0.7 / 4.1.2, which fix this issue by hardening the Groovy security sandbox.

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/2026/07/20/7, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53421.json, https://lists.apache.org/thread/nmzvz6gb2ldm30wvyk613r8dfrb6r8yx, https://nvd.nist.gov/vuln/detail/CVE-2026-53421

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00678%
EPSS Percentile
0.5069%
Introduced Version
7afe57a317c88ebedf75ca8d714ad743e5cd1d24,3.0.14,4.0.2,4.1.0-M0
Fix Available
1607ab1fff8542e6fdd634ff68b9afd03d80dd8c,4.0.7,4.1.2

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