CVE-2026-87779

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductApache Syncope

PublishedSep 14, 2026

First seenSep 14, 2026

Weakness typeCWE-532CWE-532

How to fix

Vendor advisories

lists.apache.org/thread/3t3om8mny7ng52q053pdzpmtdtosnqoo

Affected products

Product	Affected versions	Fixed in
Apache Software Foundation Apache Syncope	3.0.15 ≤ v ≤ 3.0.16, 4.0.3 ≤ v ≤ 4.0.7, 4.1.0-M0 ≤ v ≤ 4.1.2	—

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