{"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": "2026-06-03T19:04:45.361Z"}, "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"}]}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-03T19:04:08.223332Z", "id": "CVE-2026-42507", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-03T19:04:45.361Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-42507", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-03T19:04:08.223332Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-03T19:04:38.365Z"}}], "cna": {"title": "Arbitrary inputs are included in errors without any escaping in net/textproto", "affected": [{"vendor": "Go standard library", "product": "net/textproto", "versions": [{"status": "affected", "version": "0", "lessThan": "1.25.11", "versionType": "semver"}, {"status": "affected", "version": "1.26.0-0", "lessThan": "1.26.4", "versionType": "semver"}], "packageName": "net/textproto", "collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected", "programRoutines": [{"name": "parseCodeLine"}, {"name": "Reader.ReadCodeLine"}, {"name": "readMIMEHeader"}, {"name": "Error.Error"}, {"name": "Reader.ReadMIMEHeader"}, {"name": "Reader.ReadResponse"}]}], "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"}], "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-532: Insertion of Sensitive Information into Log File"}]}], "providerMetadata": {"orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "shortName": "Go", "dateUpdated": "2026-06-02T22:01:37.307Z"}}}, "cveMetadata": {"cveId": "CVE-2026-42507", "state": "PUBLISHED", "dateUpdated": "2026-06-03T19:04:45.361Z", "dateReserved": "2026-04-28T00:21:12.792Z", "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc", "datePublished": "2026-06-02T22:01:37.307Z", "assignerShortName": "Go"}, "dataVersion": "5.2"}

{"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": "2026-06-03T20:16:20.650", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "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"}

{}