Vulnerability record · CVE-2026-85673 · published 4 September 2026

CVE-2026-85673: Server-side request forgery (SSRF) vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.51% · top 59.2% CWE-918 · Server-side request forgery (SSRF) Deferred

8.7CVSS 4.0 base score

0.51%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

6References

24 Sep 2026Last modified by NVD

Description

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/hiyouga/LlamaFactory
https://github.com/hiyouga/LlamaFactory/blob/v0.9.5/src/llamafactory/api/chat.py
https://github.com/hiyouga/LlamaFactory/blob/v0.9.5/src/llamafactory/api/common.py
https://github.com/hiyouga/LlamaFactory/issues/10646
https://www.vulncheck.com/advisories/llama-factory-ssrf-guard-bypass-via-redirect-and-dns-rebinding
https://github.com/hiyouga/LlamaFactory/issues/10646

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-85673), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.