---
id: CVE-2026-87779
title: >-
  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
summary: >-
  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
  va…
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-532
vendor: Apache Software Foundation
product: 'org.apache.syncope.core:syncope-core-spring'
affected:
  - 'org.apache.syncope.core:syncope-core-spring >= 3.0.15 <= 3.0.16'
  - 'org.apache.syncope.core:syncope-core-spring >= 4.0.3 <= 4.0.7'
  - 'org.apache.syncope.core:syncope-core-spring >= 4.1.0-M0 <= 4.1.2'
published: '2026-09-14'
updated: '2026-09-14'
sourceUpdated: '2026-09-14T20:58:48.430'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-87779'
references:
  - url: 'https://lists.apache.org/thread/3t3om8mny7ng52q053pdzpmtdtosnqoo'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/14/23'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-14T19:46:03.666237Z'
ingestedAt: '2026-09-14T15:23:07.463Z'
epss: 0.00413
epssPercentile: 0.35347
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.