{"id":"CVE-2026-75104","title":"Hugging Face Transformers Path Traversal via Checkpoint Index","summary":"Hugging Face Transformers fails to validate shard filenames in checkpoint index files, allowing attackers to read arbitrary files outside the model directory. Attackers can supply malicious index files with parent-directory references or…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cvssSource":"cna","cwe":["CWE-22"],"vendor":"huggingface","product":"transformers","affected":["transformers <= 5.15.0"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-18T12:39:44.371007Z"},"exploitAvailable":true,"published":"2026-08-17","updated":"2026-09-24","sourceUpdated":"2026-09-24T14:19:17.341Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-75104","references":[{"url":"https://github.com/huggingface/transformers/issues/47176","label":"GitHub Issue #47176"},{"url":"https://github.com/huggingface/transformers/issues/47177","label":"GitHub Issue #47177"},{"url":"https://github.com/huggingface/transformers"},{"url":"https://github.com/huggingface/transformers/blob/main/src/transformers/utils/hub.py","label":"get_checkpoint_shard_files in src/transformers/utils/hub.py"},{"url":"https://www.vulncheck.com/advisories/hugging-face-transformers-path-traversal-via-checkpoint-index","label":"VulnCheck Advisory: Hugging Face Transformers Path Traversal via Checkpoint Index"}],"tags":["cve.org","exploit-available"],"epss":0.0019,"epssPercentile":0.08884,"ingestedAt":"2026-09-24T15:45:56.704Z","slug":"CVE-2026-75104","body":"## Overview\n\nHugging Face Transformers fails to validate shard filenames in checkpoint index files, allowing attackers to read arbitrary files outside the model directory. Attackers can supply malicious index files with parent-directory references or absolute paths that are joined without validation, enabling file disclosure and filesystem reconnaissance.\n\n## Affected\n\n- `transformers <= 5.15.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[]}