{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.6.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2319a99057d11b0c9744c885df84806eea019166"
            }
          ],
          "repo": "https://github.com/uutils/coreutils",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "canonical",
    "cwe_ids": [
      "CWE-20"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35347.json"
  },
  "details": "The comm utility in uutils coreutils incorrectly consumes data from non-regular file inputs before performing comparison operations. The are_files_identical function opens and reads from both input paths to compare content without first verifying if the paths refer to regular files. If an input path is a FIFO or a pipe, this pre-read operation drains the stream, leading to silent data loss before the actual comparison logic is executed. Additionally, the utility may hang indefinitely if it attempts to pre-read from infinite streams like /dev/zero.",
  "id": "CVE-2026-35347",
  "modified": "2026-07-08T05:37:08.373510081Z",
  "published": "2026-04-22T16:07:54.366Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/uutils"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35347.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/uutils/coreutils/releases/tag/0.6.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-35347"
    },
    {
      "type": "FIX",
      "url": "https://github.com/uutils/coreutils/pull/9545"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/uutils/coreutils"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "uutils coreutils comm Silent Data Loss or Denial of Service via Improper Input Validation"
}