CVE-2026-18679

{"id": "CVE-2026-18679", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-18679", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-13T14:45:22.142897Z"}}], "cvssMetricV40": [{"type": "Secondary", "source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.8, "Automatable": "NOT_DEFINED", "attackVector": "ADJACENT", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "affectedData": [{"vendor": "Kong Inc.", "modules": ["kuma-dp"], "product": "Kong Mesh", "versions": [{"status": "affected", "version": "0", "lessThan": "2.7.26", "versionType": "semver"}, {"status": "affected", "version": "2.8.0", "lessThan": "2.9.16", "versionType": "semver"}, {"status": "affected", "version": "2.10.0", "lessThan": "2.11.14", "versionType": "semver"}, {"status": "affected", "version": "2.12.0", "lessThan": "2.12.11", "versionType": "semver"}, {"status": "affected", "version": "2.13.0", "lessThan": "2.13.7", "versionType": "semver"}], "platforms": ["Linux"], "defaultStatus": "unaffected"}]}], "published": "2026-08-12T20:17:41.957", "references": [{"url": "https://developer.konghq.com/mesh/changelog/", "source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb"}, {"url": "https://github.com/kumahq/kuma/pull/16777", "source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb"}, {"url": "https://github.com/kumahq/kuma/security/advisories/GHSA-wvmp-6r4v-j6cv", "source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "When kuma-dp is started against an HTTPS control plane and the operator did not pass a CA certificate, the data plane connects with TLS peer verification disabled, and the dataplane authentication token is sent over that unverified connection.\n\n\n\nAn on-path actor can intercept the dataplane authentication token and impersonate the control plane to the data plane, injecting a forged bootstrap configuration and taking over the proxy."}], "lastModified": "2026-08-31T19:22:43.473", "sourceIdentifier": "02762ae7-200e-4b20-9b2b-a77d5b8fc4cb"}