{"attribution":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","cve":{"id":"CVE-2026-115539","sourceIdentifier":"security@docker.com","published":"2026-11-10T20:18:03.897","lastModified":"2026-11-10T20:18:03.897","vulnStatus":"Received","cveTags":[],"descriptions":[{"lang":"en","value":"SwarmKit's Cluster-API proxy can overwrite a forwarded client's TLS identity with an intermediary manager's identity. WithMetadataForwardTLSInfo replaces outgoing metadata with a copy of the incoming metadata, discarding the redirect guard's changes when built with grpc-go 1.39 or later. During a short window after a leader change, two proxy hops through managers with inconsistent views of the leader can allow an attacker possessing a valid worker node TLS certificate and private key to obtain a manager node certificate for the attacker's own key, escalating privileges from worker to manager. Applications built with an affected SwarmKit version and grpc-go 1.39 or later are impacted."}],"affected":[{"source":"security@docker.com","affectedData":[{"vendor":"moby","product":"SwarmKit","defaultStatus":"unaffected","packageName":"github.com/moby/swarmkit/v2","versions":[{"version":"0","lessThan":"2.1.3","versionType":"semver","status":"affected"}]},{"vendor":"Docker","product":"Docker Engine","defaultStatus":"unaffected","packageName":"github.com/docker/docker","versions":[{"version":"23.0.0","lessThan":"*","versionType":"semver","status":"affected"}]},{"vendor":"moby","product":"Moby","defaultStatus":"unaffected","packageName":"github.com/moby/moby/v2","versions":[{"version":"0","lessThanOrEqual":"2.0.0-beta.28","versionType":"semver","status":"affected"}]},{"vendor":"moby","product":"SwarmKit","defaultStatus":"unaffected","packageName":"github.com/moby/swarmkit","versions":[{"version":"1.12.1-0.20220307221335-616e8db4c3b0","lessThan":"*","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security@docker.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/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":7.7,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","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"}}]},"weaknesses":[{"source":"security@docker.com","type":"Secondary","description":[{"lang":"en","value":"CWE-441"}]}],"references":[{"url":"https://github.com/moby/swarmkit/security/advisories/GHSA-628g-hv7f-pgjc","source":"security@docker.com"}]}}