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CVE PROGRAM SOURCE RECORD9.1 Critical

CVE-2026-87785

Apache Syncope: JWT subject spoofing

Description

Authentication bypass by spoofing vulnerability in Apache Syncope. When the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can spoof another user's privileges after completing a successful authentication and obtaining a valid JWT. This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Apache Software Foundation Apache Syncope

Default version status: unaffected

  • 3.0.0-M0 to ≤ 3.0.16affected
  • 4.0.0-M0 to ≤ 4.0.7affected
  • 4.1.0-M0 to ≤ 4.1.2affected
pkg:maven/org.apache.syncope.core/syncope-core-spring

References