AUTOMATIC1111 stable-diffusion-webui Model Instantiation sd_models.py get_obj_from_str code injection

{
  "id": "35aa81ac22686d951d3d654e0ab01c6b7c7792a45a2b8bdce82e9074cedb320b",
  "url": "https://osv.dev/vulnerability/CVE-2026-111986",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "AUTOMATIC1111 stable-diffusion-webui Model Instantiation sd_models.py get_obj_from_str code injection",
    "summary": "A vulnerability was determined in AUTOMATIC1111 stable-diffusion-webui up to 1.10.1. Affected is the function get_obj_from_str of the file modules/sd_models.py of the component Model Instantiation. This manipulation of the argument Target causes code injection. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.",
    "evidence": "osv:CVE-2026-111986",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-111986",
      "aliases": [
        "CVE-2026-111986"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/automatic1111/stable-diffusion-webui",
              "type": "GIT",
              "events": [
                {
                  "introduced": "c19d04436496ab29ddca4758a792831ae41b31de"
                },
                {
                  "last_affected": "82a973c04367123ae98bd9abdf80d9eda9b910e2"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "1.10.0"
                      },
                      {
                        "last_affected": "1.10.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "1.10.1"
                      },
                      {
                        "last_affected": "1.10.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandaloneSingleVersion"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.10.1"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.10.0",
            "1.10.1",
            "v1.10.1",
            "v1.10.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111986.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:41.572093733Z",
      "provider": "osv",
      "references": [
        "https://github.com/AUTOMATIC1111/stable-diffusion-webui/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111986.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-111986",
        "https://vuldb.com/cve/CVE-2026-111986",
        "https://vuldb.com/submit/1006657",
        "https://vuldb.com/vuln/421652",
        "https://github.com/AUTOMATIC1111/stable-diffusion-webui/issues/17499",
        "https://vuldb.com/vuln/421652/cti",
        "https://github.com/user-attachments/files/32834193/a1111-yaml-target-poc.zip"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-74",
          "CWE-94"
        ],
        "cna_assigner": "VulDB",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111986.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-111986",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509243,
  "published_at": "2026-10-18T13:00:16.34+00:00"
}