{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-42507", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "state": "PUBLISHED", "assignerShortName": "Go", "dateReserved": "2026-04-28T00:21:12.792Z", "datePublished": "2026-06-02T22:01:37.307Z", "dateUpdated": "2026-06-02T22:01:37.307Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2026-06-02T22:01:37.307Z"}, "title": "Arbitrary inputs are included in errors without any escaping in net/textproto", "descriptions": [{"lang": "en", "value": "When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged."}], "affected": [{"vendor": "Go standard library", "product": "net/textproto", "collectionURL": "https://pkg.go.dev", "packageName": "net/textproto", "versions": [{"version": "0", "lessThan": "1.25.11", "status": "affected", "versionType": "semver"}, {"version": "1.26.0-0", "lessThan": "1.26.4", "status": "affected", "versionType": "semver"}], "programRoutines": [{"name": "parseCodeLine"}, {"name": "Reader.ReadCodeLine"}, {"name": "readMIMEHeader"}, {"name": "Error.Error"}, {"name": "Reader.ReadMIMEHeader"}, {"name": "Reader.ReadResponse"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-532: Insertion of Sensitive Information into Log File"}]}], "references": [{"url": "https://go.dev/issue/79346"}, {"url": "https://go.dev/cl/777060"}, {"url": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw"}, {"url": "https://pkg.go.dev/vuln/GO-2026-5039"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "When returning errors, functions in the net/textproto package would include its input as part of the error. This might allow an attacker to inject misleading content to errors that are printed or logged."}], "id": "CVE-2026-42507", "lastModified": "2026-06-02T23:16:38.027", "metrics": {}, "published": "2026-06-02T23:16:38.027", "references": [{"source": "security@golang.org", "url": "https://go.dev/cl/777060"}, {"source": "security@golang.org", "url": "https://go.dev/issue/79346"}, {"source": "security@golang.org", "url": "https://groups.google.com/g/golang-announce/c/tKs3rmcBcKw"}, {"source": "security@golang.org", "url": "https://pkg.go.dev/vuln/GO-2026-5039"}], "sourceIdentifier": "security@golang.org", "vulnStatus": "Received"}

{}

{}