{"id":"GHSA-4x3g-87c5-vq62","revision":null,"records":[{"revision":"810d164d72b340c98f3372d2f6b600d3","observedAt":"2026-11-11T04:25:37.534+00:00","statement":{"source":"cve-program","id":"CVE-2026-97039","aliases":[],"title":"Flag sanitization bypass via \"#cgo pkg-config:\" directives in cmd/go","description":"Building a malicious package that uses \"#cgo pkg-config:\" directives could load untrusted pkg-config \".pc\" files or inject unvalidated compiler and linker flags. The pkg-config flag allowlist previously permitted \"--with-path=\" and \"--personality=\", allowed \"--define-variable=\" values beginning with \"=\" or \"$\" (which can rewrite paths in system \".pc\" files into sysroot-prefixed \"-L=\" or \"-L$SYSROOT\" linker search paths), and allowed package arguments ending in \".pc\" or containing path separators or \"..\", which caused pkg-config to load local \".pc\" files directly from the package directory. In addition, flags returned by \"pkg-config --cflags\" in cgoCPPFLAGS were not checked when determining whether internal linking is safe. The go command now disallows \"--with-path=\", \"--personality=\", leading \"=\" or \"$\" characters in \"--define-variable=\" values, and local \".pc\" paths in \"#cgo pkg-config:\" directives, and inspects cgoCPPFLAGS when checking internal linking compatibility.","state":0,"publishedAt":"2026-11-11T03:13:15.684+00:00","modifiedAt":"2026-11-11T03:13:15.684+00:00","affected":[{"ecosystem":"https://pkg.go.dev","name":"cmd/go","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Go toolchain\",\n                    \"product\": \"cmd/go\",\n                    \"collectionURL\": \"https://pkg.go.dev\",\n                    \"packageName\": \"cmd/go\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"1.26.11\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"1.27.0-0\",\n                            \"lessThan\": \"1.27.4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[],"references":["https://go.dev/cl/862152","https://go.dev/issue/82571","https://groups.google.com/g/golang-announce/c/iY8TY0wWgbM","https://pkg.go.dev/vuln/GO-2026-6852"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97039","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97039","identifiers":["CVE-2026-97039"]},"retained":false,"historicalAffected":[]},{"revision":"3197701ab84142fa82ddacfc5f121a73","observedAt":"2026-11-15T05:33:32.354+00:00","statement":{"source":"euvd","id":"EUVD-2026-123106","aliases":["CVE-2026-97039","GHSA-4x3g-87c5-vq62"],"title":"Building a malicious package that uses \"#cgo pkg-config:\" directives could load untrusted pkg-config \".pc\" files or inject unvalidated compiler and linker flags. The pkg-config flag allowlist previously permitted \"--with-path=\" and \"--perso…","description":"Building a malicious package that uses \"#cgo pkg-config:\" directives could load untrusted pkg-config \".pc\" files or inject unvalidated compiler and linker flags. The pkg-config flag allowlist previously permitted \"--with-path=\" and \"--personality=\", allowed \"--define-variable=\" values beginning with \"=\" or \"$\" (which can rewrite paths in system \".pc\" files into sysroot-prefixed \"-L=\" or \"-L$SYSROOT\" linker search paths), and allowed package arguments ending in \".pc\" or containing path separators or \"..\", which caused pkg-config to load local \".pc\" files directly from the package directory. In addition, flags returned by \"pkg-config --cflags\" in cgoCPPFLAGS were not checked when determining whether internal linking is safe. The go command now disallows \"--with-path=\", \"--personality=\", leading \"=\" or \"$\" characters in \"--define-variable=\" values, and local \".pc\" paths in \"#cgo pkg-config:\" directives, and inspects cgoCPPFLAGS when checking internal linking compatibility.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[],"references":["https://go.dev/cl/862152","https://go.dev/issue/82571","https://groups.google.com/g/golang-announce/c/iY8TY0wWgbM","https://pkg.go.dev/vuln/GO-2026-6852"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-123106","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Nov 11, 2026, 3:13:15 AM","dateUpdated":"Nov 11, 2026, 3:13:15 AM"},"relatedAdvisories":[{"id":"msrc_CVE-2026-97039","title":"Flag sanitization bypass via \"#cgo pkg-config:\" directives in cmd/go","vulnerabilityIds":["CVE-2026-97039"]},{"id":"openSUSE-SU-2026:12529-1","title":"go1.26-1.26.11-1.1 on GA media","vulnerabilityIds":["CVE-2026-97033","CVE-2026-97034","CVE-2026-97035","CVE-2026-97036","CVE-2026-97037","CVE-2026-97038","CVE-2026-97039","CVE-2026-97040","CVE-2026-97041","CVE-2026-97042","CVE-2026-97043","CVE-2026-97054"]},{"id":"openSUSE-SU-2026:12540-1","title":"go1.27-1.27.4-1.1 on GA media","vulnerabilityIds":["CVE-2026-97033","CVE-2026-97034","CVE-2026-97035","CVE-2026-97036","CVE-2026-97037","CVE-2026-97038","CVE-2026-97039","CVE-2026-97040","CVE-2026-97041","CVE-2026-97042","CVE-2026-97043","CVE-2026-97054"]},{"id":"WID-SEC-W-2026-4370","title":"Golang Go: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff","vulnerabilityIds":["CVE-2026-97033","CVE-2026-97034","CVE-2026-97035","CVE-2026-97036","CVE-2026-97037","CVE-2026-97038","CVE-2026-97039","CVE-2026-97040","CVE-2026-97041","CVE-2026-97042","CVE-2026-97043","CVE-2026-97054"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-123106","identifiers":["EUVD-2026-123106","CVE-2026-97039","GHSA-4x3g-87c5-vq62"]},"retained":false,"historicalAffected":[]},{"revision":"3a7f75c4f2c14eee9fa8f71712e4cc1a","observedAt":"2026-11-13T06:18:20.985+00:00","statement":{"source":"nvd","id":"CVE-2026-97039","aliases":[],"title":"Building a malicious package that uses \"#cgo pkg-config:\" directives could load untrusted pkg-config \".pc\" files or inject unvalidated compiler and linker flags. The pkg-config flag allowlist previously permitted \"--with-path=\" and \"--perso…","description":"Building a malicious package that uses \"#cgo pkg-config:\" directives could load untrusted pkg-config \".pc\" files or inject unvalidated compiler and linker flags. The pkg-config flag allowlist previously permitted \"--with-path=\" and \"--personality=\", allowed \"--define-variable=\" values beginning with \"=\" or \"$\" (which can rewrite paths in system \".pc\" files into sysroot-prefixed \"-L=\" or \"-L$SYSROOT\" linker search paths), and allowed package arguments ending in \".pc\" or containing path separators or \"..\", which caused pkg-config to load local \".pc\" files directly from the package directory. In addition, flags returned by \"pkg-config --cflags\" in cgoCPPFLAGS were not checked when determining whether internal linking is safe. The go command now disallows \"--with-path=\", \"--personality=\", leading \"=\" or \"$\" characters in \"--define-variable=\" values, and local \".pc\" paths in \"#cgo pkg-config:\" directives, and inspects cgoCPPFLAGS when checking internal linking compatibility.","state":0,"publishedAt":"2026-11-11T05:19:58.133+00:00","modifiedAt":"2026-11-12T22:09:39.233+00:00","affected":[],"metrics":[],"references":["https://go.dev/cl/862152","https://go.dev/issue/82571","https://groups.google.com/g/golang-announce/c/iY8TY0wWgbM","https://pkg.go.dev/vuln/GO-2026-6852"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97039","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":[],"productCriteria":[],"sourceDates":{"published":"2026-11-11T05:19:58.133","lastModified":"2026-11-12T22:09:39.233"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-97039","identifiers":["CVE-2026-97039"]},"retained":false,"historicalAffected":[]},{"revision":"55c0985e8db94280a3ca49fbbdb02945","observedAt":"2026-11-11T04:27:36.086+00:00","statement":{"source":"osv","id":"GO-2026-6852","aliases":["CVE-2026-97039"],"title":"Flag sanitization bypass via \"#cgo pkg-config:\" directives in cmd/go","description":"Building a malicious package that uses \"#cgo pkg-config:\" directives could load untrusted pkg-config \".pc\" files or inject unvalidated compiler and linker flags.\n\nThe pkg-config flag allowlist previously permitted \"--with-path=\" and \"--personality=\", allowed \"--define-variable=\" values beginning with \"=\" or \"$\" (which can rewrite paths in system \".pc\" files into sysroot-prefixed \"-L=\" or \"-L$SYSROOT\" linker search paths), and allowed package arguments ending in \".pc\" or containing path separators or \"..\", which caused pkg-config to load local \".pc\" files directly from the package directory. In addition, flags returned by \"pkg-config --cflags\" in cgoCPPFLAGS were not checked when determining whether internal linking is safe.\n\nThe go command now disallows \"--with-path=\", \"--personality=\", leading \"=\" or \"$\" characters in \"--define-variable=\" values, and local \".pc\" paths in \"#cgo pkg-config:\" directives, and inspects cgoCPPFLAGS when checking internal linking compatibility.","state":0,"publishedAt":"2026-11-11T02:51:11+00:00","modifiedAt":"2026-11-11T03:15:14.8029036+00:00","affected":[{"ecosystem":"Go","name":"toolchain","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.26.11"},{"kind":"introduced","version":"1.27.0-0"},{"kind":"fixed","version":"1.27.4"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://go.dev/cl/862152","https://go.dev/issue/82571","https://groups.google.com/g/golang-announce/c/iY8TY0wWgbM"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6852","license":"OSV · upstream source license applies","key":"osv:GO-2026-6852","identifiers":["GO-2026-6852","CVE-2026-97039"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-15T14:45:34.5753951+00:00","complete":true,"records":1781,"lastAttemptAt":"2026-11-15T14:45:34.5753951+00:00","lastSuccessAt":"2026-11-15T14:45:34.8574978+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.8574998+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-7de4d7559a5263003f03d9f70577ab06f92ba4178309f26fce53e22a4a959294-dbc2a32b8ba58f086cd55c8e6641a2329d359d06d53c8affd618a394074e5b45","complete":true,"records":425802,"lastAttemptAt":"2026-11-15T14:45:34.1277661+00:00","lastSuccessAt":"2026-11-15T14:45:34.107801+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.1277661+00:00","snapshotPublishedAt":"2026-11-15T14:23:20+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-a1e9404e161045f8a66efed8052b3191","complete":false,"records":13821,"lastAttemptAt":"2026-11-15T14:51:25.6439815+00:00","lastSuccessAt":"2026-11-15T14:51:25.638+00:00","error":"10 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-15T14:51:25.638+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13864,"expectedIdentifiers":13874,"failedIdentifiers":10},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-15T14:45:34.5753951+00:00","complete":true,"records":1125,"lastAttemptAt":"2026-11-15T14:45:34.5753951+00:00","lastSuccessAt":"2026-11-15T14:45:37.4881046+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:37.4881058+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-c167466b61b34733b7aedb2becc5e769","complete":true,"records":13833,"lastAttemptAt":"2026-11-15T14:45:39.1345919+00:00","lastSuccessAt":"2026-11-15T14:01:07.902+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:01:07.902+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13874,"expectedIdentifiers":13874,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-64eea06dbd27de8464d5dbce1b78cc794cc59e2d901516ae0d3ea76e624cdae0","complete":true,"records":9955,"lastAttemptAt":"2026-11-15T14:45:34.4946418+00:00","lastSuccessAt":"2026-11-14T13:57:23.1208135+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.4946418+00:00","snapshotPublishedAt":"2026-11-14T13:17:57+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-f4424d7d4861b1af1404bd15abcb83f295dcd003412a9340ca99dc8200aa148a","complete":true,"records":2014,"lastAttemptAt":"2026-11-15T14:45:34.2700713+00:00","lastSuccessAt":"2026-11-13T19:57:08.2864435+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.2700713+00:00","snapshotPublishedAt":"2026-11-13T19:33:10+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-6086d649bcb454cdf302d7d9275177bda73550e1b6e446b3520e9b6266d3582c","complete":true,"records":3148,"lastAttemptAt":"2026-11-15T14:45:34.5080319+00:00","lastSuccessAt":"2026-11-15T11:05:17.1034234+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.5080319+00:00","snapshotPublishedAt":"2026-11-15T10:03:04+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-ff18f36f13fcca3a20a3fb9274b59b8872d18869a99071730e1e79b625c8f612","complete":true,"records":232475,"lastAttemptAt":"2026-11-15T14:45:34.3867952+00:00","lastSuccessAt":"2026-11-15T11:05:10.4195883+00:00","error":null,"lastVerifiedAt":"2026-11-15T14:45:34.3867952+00:00","snapshotPublishedAt":"2026-11-15T10:33:06+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}