CVE-2026-107162: falha de alta gravidade em ExpressGateway express-gateway
Express Gateway through 1.16.11 OAuth 2.0 Refresh Token Validation Bypass
Publicada em
18Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.6
probabilidade de exploração
—
exploração observada
nãonenhuma fonte reporta
Express Gateway through 1.16.11 contains an authentication bypass vulnerability in the OAuth 2.0 refresh_token grant that fails to validate the token secret or issuing client. Attackers with any valid client credentials and the identifier portion of another user's refresh token can obtain that user's access token and impersonate them against oauth2-protected APIs.
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Produtos afetados
ExpressGateway · express-gatewayCVEs relacionadas — ExpressGateway express-gateway
No mesmo produto, das mais perigosas para as menos.
CVE-2025-9096MEDIUMExpressGateway express-gateway REST Endpoint apps.js cross site scriptingEPSS 0.3%CVE-2025-9095MEDIUMExpressGateway express-gateway REST Endpoint users.js cross site scriptingEPSS 0.3%CVE-2026-107177HIGHExpress Gateway through 1.16.11 Hardcoded Default cipherKey Exposes OAuth TokensEPSS —
Referências
https://github.com/ExpressGateway/express-gatewayhttps://github.com/ExpressGateway/express-gateway/blob/45612814d12f65889ef3bdf80b2ed7ab9b557736/lib/policies/oauth2/oauth2-server.js#L221-L247https://github.com/ExpressGateway/express-gateway/blob/45612814d12f65889ef3bdf80b2ed7ab9b557736/lib/services/tokens/token.service.js#L100-L136https://github.com/ExpressGateway/express-gateway/issues/1076https://www.vulncheck.com/advisories/express-gateway-through-1.16.11-oauth-2.0-refresh-token-validation-bypass