{"id":"CVE-2026-75104","summary":"Hugging Face Transformers Path Traversal via Checkpoint Index","details":"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 absolute paths that are joined without validation, enabling file disclosure and filesystem reconnaissance.","modified":"2026-08-20T03:30:10.233802446Z","published":"2026-08-17T20:36:00.721Z","database_specific":{"cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75104.json","cna_assigner":"VulnCheck"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75104.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75104"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/hugging-face-transformers-path-traversal-via-checkpoint-index"},{"type":"REPORT","url":"https://github.com/huggingface/transformers/issues/47176"},{"type":"REPORT","url":"https://github.com/huggingface/transformers/issues/47177"},{"type":"PACKAGE","url":"https://github.com/huggingface/transformers"},{"type":"ARTICLE","url":"https://github.com/huggingface/transformers/blob/main/src/transformers/utils/hub.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/huggingface/transformers","events":[{"introduced":"0"},{"last_affected":"5eddc12edfaf8cafde8c9bae4ccb12f8a139b4f9"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"5.15.0"}],"source":"AFFECTED_FIELD"}}],"versions":["v5.15.0","v4.56.1-Vault-Gemma-preview","4.55.0-GLM-4.5V-preview-GLM-4.5V-preview","4.55.0-GLM-4.5V-preview","v4.53.2-Ernie-4.5-preview","v4.53.2-modernbert-decoder-preview","v4.52.4-Kyutai-STT-preview","v4.52.4-VJEPA-2-preview","v4.52.4-ColQwen2-preview","v4.51.3-CSM-preview","v4.51.3-GraniteMoeHybrid-preview","v4.51.3-LlamaGuard-preview","v4.51.3-D-FINE-preview","v4.51.3-SAM-HQ-preview","v4.51.3-BitNet-preview","v4.51.3-InternVL-preview","v4.51.3-Janus-preview","v4.51.3-TimesFM-preview","v4.51.3-MLCD-preview","v4.51.3-Qwen2.5-Omni-preview","v4.50.3-DeepSeek-3","v4.49.0-Mistral-3","v4.49.0-AyaVision","v4.49.0-SigLIP-2","v4.49.0-SmolVLM-2","v4.33.1","v4.16.0","v4.15.0","v4.14.0","v4.13.0","v4.12.0","v4.11.0","v4.10.0","v4.9.0","v4.8.0","v4.7.0","v4.6.0","v4.5.0","v4.4.0","v4.3.0.rc1","4.3.0.rc1","v4.2.0","v4.1.1","v4.1.0","v3.5.0","v3.4.0","v3.3.1","v3.3.0","v3.2.0","v3.1.0","v3.0.2","v3.0.1","3.0.1","v3.0.0","v2.11.0","v2.10.0","v2.9.1","v2.9.0","v2.8.0","v2.7.0","v2.6.0","v2.5.1","v2.5.0","v2.4.1","v2.4.0","v2.3.0","v2.2.2","v2.2.1","v2.2.0","v2.1.1","v2.1.0","v2.0.0","1.2.0","1.1.0","1.0","v0.6.2","v0.6.1","v0.6.0","v0.5.1","v0.5.0","0.5.0","v0.4.0","v0.3.0","v0.2.0","v0.1.2","0.1.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75104.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}