CVE-2026-94447

{"id": "CVE-2026-94447", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-94447", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-10-15T15:42:26.460826Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "security@golang.org", "affectedData": [{"vendor": "Go toolchain", "product": "cmd/go", "versions": [{"status": "affected", "version": "0", "lessThan": "1.26.9", "versionType": "semver"}, {"status": "affected", "version": "1.27.0-0", "lessThan": "1.27.2", "versionType": "semver"}], "packageName": "cmd/go", "collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected"}]}], "published": "2026-10-08T23:17:05.180", "references": [{"url": "https://go.dev/cl/840785", "source": "security@golang.org"}, {"url": "https://go.dev/issue/81834", "source": "security@golang.org"}, {"url": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI", "source": "security@golang.org"}, {"url": "https://pkg.go.dev/vuln/GO-2026-6602", "source": "security@golang.org"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "description": [{"lang": "en", "value": "CWE-354"}]}], "descriptions": [{"lang": "en", "value": "Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/toolchain go.sum entry and operates a malicious GOMODPROXY the user chooses to use can bypass the intended checksum. We now ensure that golang.org/toolchain always goes to the network for the canonical checksum."}], "lastModified": "2026-10-15T16:18:24.170", "sourceIdentifier": "security@golang.org"}