CVE-2026-87802
Apache Syncope: SRA OAuth2 JWT signature verification bypass
Description
Improper verification of cryptographic signature vulnerability in Apache Syncope. When SRA is configured for OAuth 2.0 without JWKS set URI assigned, an attacker can forge arbitrary JWTs to impersonate any user identity and permissions, gaining full access to services proxied by SRA. 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.
INFO
Published Date :
Sept. 14, 2026, 10:22 a.m.
Last Modified :
Sept. 14, 2026, 10:22 a.m.
Remotely Exploit :
No
Source :
apache
Solution
- Upgrade Apache Syncope to version 4.0.8 or later.
- Upgrade Apache Syncope to version 4.1.3 or later.
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