FKIE_CVE-2026-35357

Vulnerability from fkie_nvd - Published: 2026-04-22 17:16 - Updated: 2026-04-24 19:02
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
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
security@ubuntu.comhttps://github.com/uutils/coreutils/issues/10011Exploit, Issue Tracking, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/uutils/coreutils/issues/10011Exploit, Issue Tracking, Vendor Advisory
Impacted products
Vendor Product Version
uutils coreutils -
To clipboard 

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      "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."
    }
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  "id": "CVE-2026-35357",
  "lastModified": "2026-04-24T19:02:53.557",
  "metrics": {
    "cvssMetricV31": [
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        "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"
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  "published": "2026-04-22T17:16:38.267",
  "references": [
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