CVE-2026-35347

{"id": "CVE-2026-35347", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@ubuntu.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 2.5, "exploitabilityScore": 1.8}]}, "published": "2026-04-22T17:16:36.903", "references": [{"url": "https://github.com/uutils/coreutils/pull/9545", "tags": ["Issue Tracking", "Patch"], "source": "security@ubuntu.com"}, {"url": "https://github.com/uutils/coreutils/releases/tag/0.6.0", "tags": ["Release Notes"], "source": "security@ubuntu.com"}, {"url": "https://github.com/uutils/coreutils/pull/9545", "tags": ["Issue Tracking", "Patch"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@ubuntu.com", "description": [{"lang": "en", "value": "CWE-20"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-04-27T12:28:23.273", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:uutils:coreutils:*:*:*:*:*:rust:*:*", "vulnerable": true, "matchCriteriaId": "87C33018-2E08-45B0-B69C-7FC224F7F883", "versionEndExcluding": "0.6.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@ubuntu.com"}