Incorrect Authorization Affecting @cedar-policy/authorization-for-expressjs package, versions <0.3.0
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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Test your applications- Snyk IDSNYK-JS-CEDARPOLICYAUTHORIZATIONFOREXPRESSJS-17816997
- published4 Jul 2026
- disclosed30 Jun 2026
- creditUnknown
Introduced: 30 Jun 2026
CVE-2026-49473 (opens in a new tab)How to fix?
Upgrade @cedar-policy/authorization-for-expressjs to version 0.3.0 or higher.
Overview
@cedar-policy/authorization-for-expressjs is a Middlewares to authorize expressJS applications with Cedar
Affected versions of this package are vulnerable to Incorrect Authorization through improper matching of incoming requests using req.originalUrl. An attacker can gain unauthorized access to restricted endpoints by manipulating the query string to bypass intended authorization checks.
Workaround
This vulnerability can be mitigated by validating and sanitizing incoming request paths before they reach the authorization middleware, and by ensuring applications do not rely solely on the middleware for authorization when defining multiple actions on overlapping path prefixes with different permission levels.