{"id":"CVE-2026-50197","sourceIdentifier":"security-advisories@github.com","published":"2026-07-17T20:17:24.087","lastModified":"2026-10-24T20:10:00.137","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.26.10, zalando/skipper's OpenPolicyAgent integration silently bypasses request-body inspection on HTTP/1.1 Transfer-Encoding: chunked and HTTP/2 requests that omit the content-length pseudo-header, because the opaAuthorizeRequestWithBody filter and OpenPolicyAgentInstance.ExtractHttpBodyOptionally in filters/openpolicyagent/openpolicyagent.go produce an empty raw_body and input.parsed_body while the upstream service receives the full attacker-controlled body. This issue is fixed in version 0.26.10."},{"lang":"es","value":"Skipper es un router HTTP y proxy inverso para composición de servicios. Antes de la versión 0.26.10, la integración de OpenPolicyAgent de zalando/skipper omite silenciosamente la inspección del cuerpo de la solicitud en solicitudes HTTP/1.1 con Transfer-Encoding: chunked y solicitudes HTTP/2 que omiten el pseudo-encabezado content-length, porque el filtro opaAuthorizeRequestWithBody y OpenPolicyAgentInstance.ExtractHttpBodyOptionally en filters/openpolicyagent/openpolicyagent.go producen un raw_body y un input.parsed_body vacíos mientras que el servicio ascendente recibe el cuerpo completo controlado por el atacante. Este problema está solucionado en la versión 0.26.10."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"zalando","product":"skipper","versions":[{"version":"< 0.26.10","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-20T14:33:19.738683Z","id":"CVE-2026-50197","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-444"}]}],"references":[{"url":"https://github.com/zalando/skipper/commit/3152f3b0bb52ca89c3564be42434db0a2a1cea23","source":"security-advisories@github.com"},{"url":"https://github.com/zalando/skipper/pull/4041","source":"security-advisories@github.com"},{"url":"https://github.com/zalando/skipper/releases/tag/v0.26.10","source":"security-advisories@github.com"},{"url":"https://github.com/zalando/skipper/security/advisories/GHSA-659f-rgp5-w4wf","source":"security-advisories@github.com"},{"url":"https://github.com/zalando/skipper/security/advisories/GHSA-659f-rgp5-w4wf","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}