Improper Verification of Cryptographic Signature Affecting org.apache.syncope:syncope-sra package, versions [3.0.0-M0,4.0.8)[4.1.0-M0,4.1.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 Sept 2026
- disclosed14 Sept 2026
- creditUnknown
Introduced: 14 Sep 2026
NewCVE-2026-87802 (opens in a new tab)How to fix?
Upgrade org.apache.syncope:syncope-sra to version 4.0.8, 4.1.3 or higher.
Overview
Affected versions of this package are vulnerable to Improper Verification of Cryptographic Signature in the JWT signature verification process when SRA is configured for OAuth 2.0 without a JWKS set URI assigned. An attacker can gain unauthorized access and impersonate any user identity and permissions by forging arbitrary JWTs. This allows full access to services proxied by SRA.