{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-12681", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "state": "PUBLISHED", "assignerShortName": "Google", "dateReserved": "2026-06-19T05:49:21.869Z", "datePublished": "2026-06-24T00:49:13.500Z", "dateUpdated": "2026-06-24T00:49:13.500Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2026-06-24T00:49:13.500Z"}, "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-1285", "description": "CWE-1285 Improper validation of specified index, position, or offset in input", "type": "CWE"}]}], "affected": [{"vendor": "Google", "product": "go-attestation", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "0.6.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation. parseEfiSignatureList() does not advance the buffer past vendor bytes before reading entries. For hashSHA256SigGUID lists, this allows attacker-controlled vendor header bytes to be appended to the trusted SHA256 hash list. A crafted TPM event log could inject arbitrary SHA256 hashes into the verifier's trusted measurement database, enabling a remote attestation verifier to accept a compromised boot state. This issue affects go-attestation: through 0.6.0.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation. <code>parseEfiSignatureList()</code> does not advance the buffer past vendor bytes before reading entries. For <code>hashSHA256SigGUID</code> lists, this allows attacker-controlled vendor header bytes to be appended to the trusted SHA256 hash list. A crafted TPM event log could inject arbitrary SHA256 hashes into the verifier's trusted measurement database, enabling a remote attestation verifier to accept a compromised boot state. This issue affects go-attestation: through 0.6.0."}]}], "references": [{"url": "https://github.com/google/go-attestation/security/advisories/GHSA-9r4w-jg96-92mv"}, {"url": "https://github.com/google/go-attestation/commit/b6e905e7ae52937f02b5ca494dd1c6a3ac7a1003"}, {"url": "https://github.com/google/go-attestation/releases/tag/v0.6.1"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "NONE", "subConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "version": "4.0", "baseSeverity": "HIGH", "baseScore": 8.9, "vectorString": "CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N"}}], "credits": [{"lang": "en", "value": "https://github.com/prasanna8585", "type": "finder"}], "source": {"discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.2"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.6.0]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "go-attestation", "source": "cna", "vendor": "Google"}, "product": "go-attestation", "vendor": "google"}], "created": "2026-06-24T04:30:06.232377+00:00", "updated": "2026-06-24T04:30:06.232423+00:00", "vendors": ["google", "google$PRODUCT$go-attestation"]}