{"id":"CVE-2026-35347","revision":"be271900b2d94f46b8b8b423ba1876f6","records":[{"revision":"be271900b2d94f46b8b8b423ba1876f6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-35347","aliases":[],"title":"uutils coreutils comm Silent Data Loss or Denial of Service via Improper Input Validation","description":"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.","state":0,"publishedAt":"2026-04-22T16:07:54.366+00:00","modifiedAt":"2026-04-22T18:11:31.441+00:00","affected":[{"ecosystem":"https://github.com/uutils","name":"coreutils","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Uutils\",\n                    \"product\": \"coreutils\",\n                    \"platforms\": [\n                        \"Linux\",\n                        \"Unix\",\n                        \"macOS\"\n                    ],\n                    \"collectionURL\": \"https://github.com/uutils\",\n                    \"packageName\": \"coreutils\",\n                    \"repo\": \"https://github.com/uutils/coreutils\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"lessThan\": \"0.6.0\",\n                            \"version\": \"0\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\"\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","score":4.4,"severity":"MEDIUM"}],"references":["https://github.com/uutils/coreutils/pull/9545","https://github.com/uutils/coreutils/releases/tag/0.6.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-35347","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-35347","identifiers":["CVE-2026-35347"]},"retained":false,"historicalAffected":[]}],"coverage":[]}