CVE-2026-32282

{"id": "CVE-2026-32282", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-32282", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-04-13T17:47:42.666766Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.5}, {"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 0.5}]}, "affected": [{"source": "security@golang.org", "affectedData": [{"vendor": "Go standard library", "product": "internal/syscall/unix", "versions": [{"status": "affected", "version": "0", "lessThan": "1.25.9", "versionType": "semver"}, {"status": "affected", "version": "1.26.0-0", "lessThan": "1.26.2", "versionType": "semver"}], "platforms": ["linux"], "packageName": "internal/syscall/unix", "collectionURL": "https://pkg.go.dev", "defaultStatus": "unaffected", "programRoutines": [{"name": "Fchmodat"}]}]}], "published": "2026-04-08T02:16:03.467", "references": [{"url": "https://go.dev/cl/763761", "tags": ["Patch"], "source": "security@golang.org"}, {"url": "https://go.dev/issue/78293", "tags": ["Issue Tracking"], "source": "security@golang.org"}, {"url": "https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU", "tags": ["Mailing List", "Release Notes"], "source": "security@golang.org"}, {"url": "https://pkg.go.dev/vuln/GO-2026-4864", "tags": ["Vendor Advisory"], "source": "security@golang.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-59"}]}], "descriptions": [{"lang": "en", "value": "On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root. The Linux fchmodat syscall silently ignores the AT_SYMLINK_NOFOLLOW flag, which Root.Chmod uses to avoid symlink traversal. Root.Chmod checks its target before acting and returns an error if the target is a symlink lying outside the root, so the impact is limited to cases where the target is replaced with a symlink between the check and operation."}, {"lang": "es", "value": "En Linux, si el objetivo de Root.Chmod es reemplazado por un enlace simb\u00f3lico mientras la operaci\u00f3n chmod est\u00e1 en curso, Chmod puede operar sobre el objetivo del enlace simb\u00f3lico, incluso cuando el objetivo se encuentra fuera de la ra\u00edz. La llamada al sistema fchmodat de Linux ignora silenciosamente la bandera AT_SYMLINK_NOFOLLOW, que Root.Chmod utiliza para evitar el recorrido de enlaces simb\u00f3licos. Root.Chmod verifica su objetivo antes de actuar y devuelve un error si el objetivo es un enlace simb\u00f3lico que se encuentra fuera de la ra\u00edz, por lo que el impacto est\u00e1 limitado a los casos en que el objetivo es reemplazado por un enlace simb\u00f3lico entre la verificaci\u00f3n y la operaci\u00f3n."}], "lastModified": "2026-07-25T10:10:00.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C6C9C072-9817-402D-877F-F83584B07017", "versionEndExcluding": "1.25.9"}, {"criteria": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "39FE9BAF-55E9-43AA-B14E-239E7EF1D65D", "versionEndExcluding": "1.26.2", "versionStartIncluding": "1.26.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@golang.org"}