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    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:Oct 14, 2026
    Last Modified:Oct 27, 2026
    EPS:Oct 14, 2026
    EPSS Score:0.00881
    CVSS Score:8.1

    Affected Products

    Vendor
    Ibm
    Product
    Api Management

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2017-1386 (CVSS 5.9) — IBM API Connect 5.0.0.0 could allow a user to bypass policy restrictions and create non-compliant passwords wh…
    CVE-2015-0149 (CVSS 5.5) — The developer portal in IBM API Management 3.0 before 3.0.4.1 does not properly restrict access to the public …
    CVE-2014-6172 (CVSS 5) — IBM API Management 3.0 before 3.0.4.0 IF1 allows remote attackers to obtain sensitive analytics information in…
    CVE-2014-6133 (CVSS 2.1) — IBM API Management 3.x before 3.0.1.0 allows local users to obtain sensitive ciphertext information via unspec…
    CVE-2014-3036 (CVSS 4.3) — Unspecified vulnerability in IBM API Management 3.0.0.0, when basic authentication is used for APIs, allows re…
    CVE-2013-0559 (CVSS 6.4) — Unspecified vulnerability in IBM API Management 2.0 before 2.0.0.1 allows remote attackers to access tenant AP…

    References

    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-L175
    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-L637
    https://github.com/gravitee-io/gravitee-api-management/blob/4.12.22/helm/values.yaml#L103
    https://github.com/gravitee-io/gravitee-docs/blob/master/pages/apim/3.x/how-tos/how-to-general-configuration.adoc
    https://github.com/gravitee-io/issues/issues/4204
    https://www.vulncheck.com/advisories/gravitee-api-management-through-4.12.22-default-jwt-secret-authentication-bypass

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High