What’s Vulnerable › Vulnerabilities

CVE-2026-87779: Apache Syncope: AES Secret Key disclosure via log output

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-09-14
• Weakness: CWE-532

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.

Affected products

• Apache Software Foundation 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

References

• https://lists.apache.org/thread/3t3om8mny7ng52q053pdzpmtdtosnqoo
• http://www.openwall.com/lists/oss-security/2026/09/14/23

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