{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-94440", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "state": "PUBLISHED", "assignerShortName": "Go", "dateReserved": "2026-09-21T16:43:04.757Z", "datePublished": "2026-10-08T22:53:58.959Z", "dateUpdated": "2026-10-08T22:53:58.959Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2026-10-08T22:53:58.959Z"}, "title": "Memory limit bypass when parsing MIME headers in net/textproto, mime/multipart", "descriptions": [{"lang": "en", "value": "Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes."}], "affected": [{"vendor": "Go standard library", "product": "net/textproto", "collectionURL": "https://pkg.go.dev", "packageName": "net/textproto", "versions": [{"version": "0", "lessThan": "1.26.9", "status": "affected", "versionType": "semver"}, {"version": "1.27.0-0", "lessThan": "1.27.2", "status": "affected", "versionType": "semver"}], "programRoutines": [{"name": "readMIMEHeader"}, {"name": "Reader.readContinuedLineSlice"}, {"name": "Reader.ReadContinuedLine"}, {"name": "Reader.ReadContinuedLineBytes"}, {"name": "Reader.ReadMIMEHeader"}], "defaultStatus": "unaffected"}, {"vendor": "Go standard library", "product": "mime/multipart", "collectionURL": "https://pkg.go.dev", "packageName": "mime/multipart", "versions": [{"version": "0", "lessThan": "1.26.9", "status": "affected", "versionType": "semver"}, {"version": "1.27.0-0", "lessThan": "1.27.2", "status": "affected", "versionType": "semver"}], "programRoutines": [{"name": "Part.populateHeaders"}, {"name": "Reader.readForm"}, {"name": "Reader.NextPart"}, {"name": "Reader.NextRawPart"}, {"name": "Reader.ReadForm"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-770: Allocation of Resources Without Limits or Throttling"}]}], "references": [{"url": "https://go.dev/cl/847307"}, {"url": "https://go.dev/issue/81741"}, {"url": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI"}, {"url": "https://pkg.go.dev/vuln/GO-2026-6608"}], "credits": [{"lang": "en", "value": "Jakub Ciolek (https://ciolek.dev)"}]}}}

{}

{"affected": [{"affectedData": [{"collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected", "packageName": "net/textproto", "product": "net/textproto", "programRoutines": [{"name": "readMIMEHeader"}, {"name": "Reader.readContinuedLineSlice"}, {"name": "Reader.ReadContinuedLine"}, {"name": "Reader.ReadContinuedLineBytes"}, {"name": "Reader.ReadMIMEHeader"}], "vendor": "Go standard library", "versions": [{"lessThan": "1.26.9", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "1.27.2", "status": "affected", "version": "1.27.0-0", "versionType": "semver"}]}, {"collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected", "packageName": "mime/multipart", "product": "mime/multipart", "programRoutines": [{"name": "Part.populateHeaders"}, {"name": "Reader.readForm"}, {"name": "Reader.NextPart"}, {"name": "Reader.NextRawPart"}, {"name": "Reader.ReadForm"}], "vendor": "Go standard library", "versions": [{"lessThan": "1.26.9", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "1.27.2", "status": "affected", "version": "1.27.0-0", "versionType": "semver"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Parsing a multipart form can bypass memory limits and read an arbitrarily long line into memory when the remaining limit at the start of a part is less than 400 bytes."}], "id": "CVE-2026-94440", "lastModified": "2026-10-08T23:17:04.917", "metrics": {}, "published": "2026-10-08T23:17:04.917", "references": [{"source": "[email protected]", "url": "https://go.dev/cl/847307"}, {"source": "[email protected]", "url": "https://go.dev/issue/81741"}, {"source": "[email protected]", "url": "https://groups.google.com/g/golang-announce/c/U2fTuyDJznI"}, {"source": "[email protected]", "url": "https://pkg.go.dev/vuln/GO-2026-6608"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.26.9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.27.0-0,1.27.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "mime/multipart", "vendor": "go_standard_library"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.26.9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[1.27.0-0,1.27.2)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "product": "net/textproto", "vendor": "go_standard_library"}], "created": "2026-10-09T01:00:14.863663+00:00", "updated": "2026-10-09T08:02:11.376002+00:00", "vendors": ["go_standard_library", "go_standard_library$PRODUCT$mime/multipart", "go_standard_library$PRODUCT$net/textproto"], "weaknesses": ["CWE-789"]}