Security advisory

{
  "id": "f11443dbc2ce09f9e7daa3391e13446e61fa52628d986993a774e7725724a6ab",
  "url": "https://osv.dev/vulnerability/CVE-2026-37233",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-37233",
    "summary": "FlexRIC v2.0.0 contains an authorization bypass in the iApp's xApp isolation mechanism. The equality function eq_xapp_ric_gen_id() in src/ric/iApp/xapp_ric_id.c compares m0->xapp_id against itself (m0->xapp_id) instead of the other argument (m1->xapp_id), effectively ignoring the xApp identity dimension. A malicious xApp connected to the iApp (port 36422) can delete any other xApp's subscriptions by sending an E42_RIC_SUBSCRIPTION_DELETE_REQUEST with a matching ric_gen_id. This breaks multi-tenant isolation in any deployment with multiple xApps sharing the same RIC.",
    "evidence": "osv:CVE-2026-37233",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-37233",
      "aliases": [
        "CVE-2026-37233"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.eurecom.fr/mosaic5g/flexric",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1f04cc558ebc8da9de6a620762bc02f5db4ecb4a"
                },
                {
                  "last_affected": "1f04cc558ebc8da9de6a620762bc02f5db4ecb4a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:mosaic5g:flexric:2.0.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.0.0"
                      },
                      {
                        "last_affected": "2.0.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.0.0",
            "v2.0.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-37233.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:46.149328421Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37233.json",
        "https://github.com/MinamiKotor1/oran-security-advisories-zhongnan-luo/blob/main/advisories/CVE-2026-37233.md",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-37233",
        "https://gitlab.eurecom.fr/mosaic5g/flexric"
      ],
      "provider_metadata": {
        "cna_assigner": "mitre",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/37xxx/CVE-2026-37233.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-37233",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 514061,
  "published_at": "2026-06-01T00:00:00+00:00"
}