{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:vmware:spring_grpc:*:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.0.3"
              }
            ],
            "source": "CPE_RANGE"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "650e78f5eeeb8c0c366f0e65b65001c35e97014d"
            }
          ],
          "repo": "https://github.com/spring-projects/spring-grpc",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "vmware",
    "cwe_ids": [
      "CWE-653"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40968.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "1.0.0"
          },
          {
            "fixed": "1.0.3"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subsequent user to gain escalated permissions.\n\nAffected versions:\nSpring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.",
  "id": "CVE-2026-40968",
  "modified": "2026-07-15T01:49:02.219373354Z",
  "published": "2026-04-28T13:42:35.525Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://spring.io/security/cve-2026-40968"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40968.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-40968"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Spring gRPC SecurityContext leaks across requests on authorization failure"
}