{"id":"CVE-2026-85673","summary":"LLaMA-Factory SSRF Guard Bypass via Redirect and DNS Rebinding","details":"LLaMA-Factory contains a server-side request forgery vulnerability in the OpenAI-compatible API multimodal media URL handler that allows unauthenticated attackers to bypass SSRF validation. The check_ssrf_url guard validates URLs once but requests.get follows redirects and re-resolves DNS without re-validation, enabling attackers to use HTTP redirects or DNS rebinding to access internal addresses and cloud metadata endpoints.","modified":"2026-09-06T03:47:20.291961438Z","published":"2026-09-04T14:32:27.487Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-918"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85673.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85673.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-85673"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/llama-factory-ssrf-guard-bypass-via-redirect-and-dns-rebinding"},{"type":"REPORT","url":"https://github.com/hiyouga/LlamaFactory/issues/10646"},{"type":"PACKAGE","url":"https://github.com/hiyouga/LlamaFactory"},{"type":"ARTICLE","url":"https://github.com/hiyouga/LlamaFactory/blob/v0.9.5/src/llamafactory/api/chat.py"},{"type":"ARTICLE","url":"https://github.com/hiyouga/LlamaFactory/blob/v0.9.5/src/llamafactory/api/common.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hiyouga/llamafactory","events":[{"introduced":"0"},{"last_affected":"7af909522a951e3ad9f022ea6f88b6755257eaa5"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"0.9.5"}]}}],"versions":["v0.9.5","v0.9.4","v0.9.3","v0.9.2","v0.9.1","v0.9.0","v0.8.3","v0.8.2","v0.8.1","v0.8.0","v0.7.1","v0.7.0","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.3","v0.5.2","v0.5.0","v0.4.0","v0.3.3","v0.3.2","v0.3.0","v0.2.2","v0.2.1","v0.2.0","v0.1.8","v0.1.7","v0.1.6","v0.1.5","v0.1.4","v0.1.3","v0.1.2","v0.1.1","v0.1.0","v0.0.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-85673.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}