{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "v5.6.1"
              }
            ],
            "source": "AFFECTED_FIELD"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "c13b2f609e6c04276994439d60072caeb0dcf3d9"
            }
          ],
          "repo": "https://github.com/neuvector/neuvector",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-wcx5-mq6c-c54j"
  ],
  "database_specific": {
    "cna_assigner": "suse",
    "cwe_ids": [
      "CWE-863"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78426.json"
  },
  "details": "The NeuVector JWT verifier accepts noncanonical Base64URL encodings of the same RSA signature field. An attacker holding a valid JWT that has not expired, but was logged out of NeuVector, can continue using the non-expired token with equivalent spelling of the RSA signature field until the token validity expires.",
  "id": "CVE-2026-78426",
  "modified": "2026-09-20T11:30:57.594158061Z",
  "published": "2026-09-17T09:28:19.683Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78426.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/neuvector/neuvector/security/advisories/GHSA-wcx5-mq6c-c54j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-78426"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-78426"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Logout bypass via alternate JWT spelling"
}