Vulnerability in Gravitee API Management
CVE-2020-37281
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/gravitee-io/issues/issues/4204 (issue-tracking)
- github.com/gravitee-io/gravitee-api-management/blob/4.12.22/gravitee-apim-rest-… (technical-description)
- github.com/gravitee-io/gravitee-api-management/blob/4.12.22/gravitee-apim-rest-… (technical-description)
- github.com/gravitee-io/gravitee-api-management/blob/4.12.22/helm/values.yaml (technical-description)
- github.com/gravitee-io/gravitee-docs/blob/master/pages/apim/3.x/how-tos/how-to-… (technical-description)
- www.vulncheck.com/advisories/gravitee-api-management-through-4.12.22-default-jw… (third-party-advisory)
Frequently asked questions
- What is CVE-2020-37281?
- CVE-2020-37281 is a high-severity vulnerability in Gravitee API Management, classified under CWE-1394. CVSS score: 8.1/10. Published 2026-10-14.
- How severe is CVE-2020-37281?
- High severity. CVSS v3 base score is 8.1 out of 10.