{"id":"CVE-2026-86169","summary":"Axolotl through 0.18.0 Remote Code Execution via Multipack Patching","details":"Axolotl through 0.18.0 contains a remote code execution vulnerability in the multipack patch path where trust_remote_code defaults to None instead of False, causing the security guard to be bypassed. Attackers can execute arbitrary Python code by crafting a malicious Hugging Face model repository selected as base_model, which is loaded with hardcoded trust_remote_code=True during AutoModelForCausalLM.from_pretrained.","modified":"2026-09-06T03:47:37.849036494Z","published":"2026-09-05T11:01:24.705Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-829"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86169.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86169.json"},{"type":"PACKAGE","url":"https://github.com/axolotl-ai-cloud/axolotl"},{"type":"ARTICLE","url":"https://github.com/axolotl-ai-cloud/axolotl/blob/v0.18.0/src/axolotl/loaders/patch_manager.py#L794-L806"},{"type":"ARTICLE","url":"https://github.com/axolotl-ai-cloud/axolotl/blob/v0.18.0/src/axolotl/monkeypatch/multipack.py#L86-L96"},{"type":"FIX","url":"https://github.com/axolotl-ai-cloud/axolotl/commit/b62d60b101eea7f32532ee3c0b17c2f2430a9262"},{"type":"FIX","url":"https://github.com/axolotl-ai-cloud/axolotl/pull/3858"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-86169"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/axolotl-through-0.18.0-remote-code-execution-via-multipack-patching"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/axolotl-ai-cloud/axolotl","events":[{"introduced":"0"},{"last_affected":"2f5cb9da62a0fe763a1ddeb7798fc9acb2f4a417"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"0.18.0"}]}}],"versions":["v0.18.0","v0.17.0","v0.16.1","v0.16.0","v0.15.0","v0.14.0","v0.13.1","v0.13.0","v0.12.0","v0.11.0","v0.10.0","v0.9.0","v0.8.0","v0.7.1","v0.7.0","v0.6.0","v0.5.2","v0.5.1.post1","v0.5.0","v0.4.0","v0.3.0","v0.2.1","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-86169.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}