CVE-2020-37281Gravitee API Management through 4.12.22 Default JWT Secret Authentication Bypass
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It affects Gravitee API Management. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.88%, higher than 58% of scored CVEs.
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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.
- CVSS
- 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-1394
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.88% (percentile 58)
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 14, 2026
Affected products
Gravitee Gravitee API Management gravitee:api_management (from the name) | through 4.12.22 | CNA record |
References
- https://github.com/gravitee-io/issues/issues/4204issue-tracking
- https://github.com/gravitee-io/gravitee-api-management/blob/4.12.22/gravitee-apim-rest-api/gravitee-apim-rest-api-standalone/gravitee-apim-rest-api-standalone-distribution/src/main/resources/config/gravitee.yml#L636-L637technical-description
- https://github.com/gravitee-io/gravitee-api-management/blob/4.12.22/gravitee-apim-rest-api/gravitee-apim-rest-api-management/gravitee-apim-rest-api-management-security/src/main/java/io/gravitee/rest/api/management/security/config/BasicSecurityConfigurerAdapter.java#L157-L175technical-description
- https://github.com/gravitee-io/gravitee-api-management/blob/4.12.22/helm/values.yaml#L103technical-description
- https://github.com/gravitee-io/gravitee-docs/blob/master/pages/apim/3.x/how-tos/how-to-general-configuration.adoctechnical-description
- https://www.vulncheck.com/advisories/gravitee-api-management-through-4.12.22-default-jwt-secret-authentication-bypassthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.