{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2.2.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "58666ac985cee19a0a9a353421c63cead6d0cb47"
            }
          ],
          "repo": "https://github.com/higress-group/higress",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-703"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92790.json"
  },
  "details": "Higress before 2.2.4 panics when processing a Cookie header segment without an equals sign, causing the plugin wrapper to recover and return a continue action that bypasses AI token rate limiting. Unauthenticated attackers can craft a malformed Cookie header to skip rate limit checks and exceed thresholds intended to restrict costly model backend calls.",
  "id": "CVE-2026-92790",
  "modified": "2026-09-19T03:30:15.843049223Z",
  "published": "2026-09-16T20:32:46.062Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92790.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92790"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/higress-before-2.2.4-rate-limit-bypass-via-malformed-cookie-header"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/higress-group/higress/issues/4599"
    },
    {
      "type": "FIX",
      "url": "https://github.com/higress-group/higress/blob/v2.2.4/plugins/wasm-go/extensions/ai-token-ratelimit/util/utils.go#L52-L63"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/higress-group/higress"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/higress-group/higress/blob/v2.2.3/plugins/wasm-go/extensions/ai-token-ratelimit/util/utils.go#L52-L63"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Higress before 2.2.4 Rate Limit Bypass via Malformed Cookie Header"
}