CVE-2026-29792 (GCVE-0-2026-29792)
Vulnerability from cvelistv5 – Published: 2026-03-10 20:06 – Updated: 2026-03-11 14:10
VLAI
EPSS
VEX
Title
Feathersjs has an OAuth Callback Account Takeover
Summary
Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. From 5.0.0 to before 5.0.42, an unauthenticated attacker can send a crafted GET request directly to /oauth/:provider/callback with a forged profile in the query string. The OAuth service's authentication payload has a fallback chain that reaches params.query (the raw request query) when Grant's session/state responses are empty. Since the attacker never initiated an OAuth authorize flow, Grant has no session to work with and produces no response, so the fallback fires. The forged profile then drives entity lookup and JWT minting. The attacker gets a valid access token for an existing user without ever contacting the OAuth provider. This vulnerability is fixed in 5.0.42.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 14:10 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
GitHub_M
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/feathersjs/feathers/security/a… | x_refsource_CONFIRM |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| feathersjs | feathers |
Affected:
>= 5.0.0, < 5.0.42
|
|
| @feathersjs | authentication-oauth |
Affected:
>= 5.0.0, < 5.0.42
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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