{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-35357", "assignerOrgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "state": "PUBLISHED", "assignerShortName": "canonical", "dateReserved": "2026-04-02T12:58:56.087Z", "datePublished": "2026-04-22T16:08:20.260Z", "dateUpdated": "2026-04-22T16:08:20.260Z"}, "containers": {"cna": {"title": "uutils coreutils cp Information Disclosure via Permission Handling Race", "affected": [{"vendor": "Uutils", "product": "coreutils", "platforms": ["Linux", "Unix", "macOS"], "collectionURL": "https://github.com/uutils", "packageName": "coreutils", "repo": "https://github.com/uutils/coreutils", "defaultStatus": "affected"}], "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-367", "description": "CWE-367: Time-of-Check Time-of-Use (TOCTOU) Race Condition", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-29", "descriptions": [{"lang": "en", "value": "CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions"}]}], "descriptions": [{"lang": "en", "value": "The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions (e.g., 0644) before being restricted to their final mode (e.g., 0600) later in the process. A local attacker can race to open the file during this window; once obtained, the file descriptor remains valid and readable even after the permissions are tightened, exposing sensitive or private file contents."}], "references": [{"url": "https://github.com/uutils/coreutils/issues/10011", "tags": ["issue-tracking"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "LOCAL", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE", "baseSeverity": "MEDIUM", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"}}], "credits": [{"lang": "en", "value": "Zellic", "type": "finder"}], "source": {"discovery": "EXTERNAL"}, "providerMetadata": {"orgId": "cc1ad9ee-3454-478d-9317-d3e869d708bc", "shortName": "canonical", "dateUpdated": "2026-04-22T16:08:20.260Z"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions (e.g., 0644) before being restricted to their final mode (e.g., 0600) later in the process. A local attacker can race to open the file during this window; once obtained, the file descriptor remains valid and readable even after the permissions are tightened, exposing sensitive or private file contents."}], "id": "CVE-2026-35357", "lastModified": "2026-04-22T17:16:38.267", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "NONE", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "security@ubuntu.com", "type": "Secondary"}]}, "published": "2026-04-22T17:16:38.267", "references": [{"source": "security@ubuntu.com", "url": "https://github.com/uutils/coreutils/issues/10011"}], "sourceIdentifier": "security@ubuntu.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-367"}], "source": "security@ubuntu.com", "type": "Secondary"}]}

{}

{}