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.
Analysis
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache Syncope | unaffected |
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No vendor fix or workaround currently provided.
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Tracking
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Mon, 14 Sep 2026 10:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Apache Syncope: SRA OAuth2 JWT signature verification bypass | |
| Weaknesses | CWE-347 | |
| References |
|
Subscriptions
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MITRE
Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-09-14T10:22:29.574Z
Reserved: 2026-09-09T10:11:18.664Z
Link: CVE-2026-87802
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-14T11:17:05.620
Modified: 2026-09-14T11:17:05.620
Link: CVE-2026-87802
Redhat
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OpenCVE Enrichment
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CWE-347
Improper Verification of Cryptographic Signature