Flyto2 Core: LLM/API keys leak to an attacker-controlled base_url

{
  "id": "6ca6023d1eb23460b03b49b32337e69ee0c442c7c8c629ed6b8c12598207edfb",
  "url": "https://osv.dev/vulnerability/CVE-2026-67425",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Flyto2 Core: LLM/API keys leak to an attacker-controlled base_url",
    "summary": "Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, llm.chat reads provider keys such as OPENAI_API_KEY and ANTHROPIC_API_KEY from the environment and sends them in the Authorization: Bearer header to caller-controlled base_url, allowing an attacker to receive the operator's key on a public host that passes the SSRF guard. This issue is fixed in version 2.26.6.",
    "evidence": "osv:CVE-2026-67425",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-67425",
      "aliases": [
        "CVE-2026-67425",
        "GHSA-qq9q-xgm3-xv9g",
        "PYSEC-2026-3573"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/flytohub/flyto-core",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2471c6e774102fcca21c61eb66cae057c0f0cecf"
                },
                {
                  "fixed": "d5f89d71303e3c1e6418d347c5c55fcd173cc8cc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.26.6"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "range": [
                      {
                        "fixed": "d5f89d71303e3c1e6418d347c5c55fcd173cc8cc"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "2471c6e774102fcca21c61eb66cae057c0f0cecf"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v2.26.6"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v2.26.4",
            "v2.26.3",
            "v2.26.0",
            "v2.25.27",
            "v2.17.6",
            "v2.16.3",
            "v2.5.0",
            "v2.2.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67425.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:30.186685618Z",
      "provider": "osv",
      "references": [
        "https://github.com/flytohub/flyto-core/releases/tag/v2.26.6",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67425.json",
        "https://github.com/flytohub/flyto-core/security/advisories/GHSA-qq9q-xgm3-xv9g",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-67425",
        "https://github.com/flytohub/flyto-core/commit/d5f89d71303e3c1e6418d347c5c55fcd173cc8cc"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-201",
          "CWE-522"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67425.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-67425",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 497271,
  "published_at": "2026-07-29T18:35:01.573+00:00"
}