CVE-2026-87779

Apache Syncope: AES Secret Key disclosure via log output

State: Published
Severity: 7.5 High
Published: Sep 14, 2026
Updated: Sep 14, 2026
Reserved: Sep 9, 2026

Description

Insertion of sensitive information into log file vulnerability in Apache Syncope.

When AES key of non-standard length (not 16/24/32 bytes) is configured, Syncope will pad the provided value with random characters. The resulting key value is logged.

This issue affects Apache Syncope: from 3.0.15 through 3.0.16, from 4.0.3 through 4.0.7, from 4.1.0-M0 through 4.1.2.

Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-532 Insertion of sensitive information into log file

Affected Products

Product	Versions
Apache SyncopeApache Software Foundation	3.0.15 through 3.0.16Affected 4.0.3 through 4.0.7Affected 4.1.0-M0 through 4.1.2Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.