Improper Encoding or Escaping of Output Affecting get-jwks package, versions <11.0.2
Threat Intelligence
Exploit Maturity
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
Proof of Concept
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-JS-GETJWKS-13110031
- published28 Sept 2025
- disclosed26 Sept 2025
- creditSagi epureionut99
Introduced: 26 Sep 2025
CVE NOT AVAILABLE CWE-116 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade get-jwks to version 11.0.2 or higher.
Overview
get-jwks is a Fetch utils for JWKS keys
Affected versions of this package are vulnerable to Improper Encoding or Escaping of Output via the getPublicKey process. An attacker can bypass issuer validation and gain unauthorized access by poisoning the JWKS cache with a crafted public key and subsequently reusing it for signature validation with a targeted issuer value.