CVE-2020-37281 Gravitee API Management through 4.12.22 Default JWT Secret Authentication Bypass
Attackers can bypass authentication and gain full administrative control by forging JWTs using the default hardcoded secret.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-37281?
CVE-2020-37281 is a critical vulnerability in Gravitee API Management, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Gravitee API Management through 4.12.22 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to impersonate any user by forging JWTs signed with the shipped default jwt.secret. Attackers knowing an existing user ID can sign an HS256 token with that subject and present it as a bearer token to the Management API, impersonating administrators to gain full platform control.
Weakness: CWE-1394
Which versions are affected by CVE-2020-37281?
How do I fix CVE-2020-37281?
No fix has been published for CVE-2020-37281 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-37281 being exploited?
There is no known exploitation of CVE-2020-37281 in the wild and no public exploit code.
Sources
Also known as GHSA-vh3j-3qjc-g47j.