Nextcloud user_oidc's ID4me does not validate signature or expiration

{
  "id": "b1ca2ff56ad8319e0c49696fbcefa4953ca5b085b8d2cdc6e55e6a9591644466",
  "url": "https://osv.dev/vulnerability/CVE-2024-37886",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Nextcloud user_oidc's ID4me does not validate signature or expiration",
    "summary": "user_oidc app is an OpenID Connect user backend for Nextcloud. An attacker could potentially trick the app into accepting a request that is not signed by the correct server. It is recommended that the Nextcloud user_oidc app is upgraded to 1.3.5, 2.0.0, 3.0.0, 4.0.0 or 5.0.0.",
    "evidence": "osv:CVE-2024-37886",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2024-37886",
      "aliases": [
        "CVE-2024-37886",
        "GHSA-vw5h-29xf-g55g"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud/user_oidc",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "608f7b4a607a96ea224aa98ad52826b01a4d42c5"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.5"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  },
                  {
                    "cpe": "cpe:2.3:a:nextcloud:user_oidc:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.3.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.3.2",
            "v1.2.0",
            "v1.3.3",
            "v1.3.4",
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.1",
            "v1.1.0",
            "v1.0.0",
            "v0.3.1",
            "v0.3.0",
            "v0.2.1",
            "v0.1.2",
            "v0.1.1",
            "v0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-37886.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.116397969Z",
      "provider": "osv",
      "references": [
        "https://hackerone.com/reports/1878391",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/37xxx/CVE-2024-37886.json",
        "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-vw5h-29xf-g55g",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-37886",
        "https://github.com/nextcloud/user_oidc/pull/715"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-347"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/37xxx/CVE-2024-37886.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-37886",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 509903,
  "published_at": "2024-06-14T15:45:12.913+00:00"
}