Arbitrary File Write via Path Traversal in ResourceCacheService

{
  "id": "ce505e1f865da5a11b656d38aa864e241218101459f16d51a3344fa143bb46d9",
  "url": "https://osv.dev/vulnerability/CVE-2026-59294",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Arbitrary File Write via Path Traversal in ResourceCacheService",
    "summary": "ResourceCacheService.getCacheName() builds the on-disk filename by appending the URI fragment verbatim, without stripping path separators or .. sequences, and passes the result to new File(resourceParentFolder, newFileName) before writing the downloaded bytes there. Spring AI 2.0.0 Spring AI 1.1.0 - 1.1.8 Spring AI 1.0.9 and earlier",
    "evidence": "osv:CVE-2026-59294",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-59294",
      "aliases": [
        "CVE-2026-59294"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/spring-projects/spring-ai",
              "type": "GIT",
              "events": [
                {
                  "introduced": "ef502dab692e26b953a75be4029dba7f1acdc88c"
                },
                {
                  "fixed": "8216227d7070dc8c368e33e8a92b181eabc47aa4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:vmware:spring_ai:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "fixed": "2.0.0.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59294.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.510363670Z",
      "provider": "osv",
      "references": [
        "https://spring.io/security/cve-2026-59294",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59294.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-59294"
      ],
      "provider_metadata": {
        "cna_assigner": "vmware",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.0.0"
                  },
                  {
                    "last_affected": "2.0.0"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandaloneSingleVersion"
              }
            ]
          },
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "1.1.0"
                  },
                  {
                    "last_affected": "1.1.8"
                  },
                  {
                    "last_affected": "1.0.9"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59294.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-59294",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 496401,
  "published_at": "2026-08-27T17:57:52.047+00:00"
}