{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "0.26.10"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3152f3b0bb52ca89c3564be42434db0a2a1cea23"
            }
          ],
          "repo": "https://github.com/zalando/skipper",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-659f-rgp5-w4wf"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-444"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50197.json"
  },
  "details": "Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.26.10, zalando/skipper's OpenPolicyAgent integration silently bypasses request-body inspection on HTTP/1.1 Transfer-Encoding: chunked and HTTP/2 requests that omit the content-length pseudo-header, because the opaAuthorizeRequestWithBody filter and OpenPolicyAgentInstance.ExtractHttpBodyOptionally in filters/openpolicyagent/openpolicyagent.go produce an empty raw_body and input.parsed_body while the upstream service receives the full attacker-controlled body. This issue is fixed in version 0.26.10.",
  "id": "CVE-2026-50197",
  "modified": "2026-07-22T05:30:01.317056938Z",
  "published": "2026-07-17T19:23:43.574Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/zalando/skipper/releases/tag/v0.26.10"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50197.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/zalando/skipper/security/advisories/GHSA-659f-rgp5-w4wf"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50197"
    },
    {
      "type": "FIX",
      "url": "https://github.com/zalando/skipper/commit/3152f3b0bb52ca89c3564be42434db0a2a1cea23"
    },
    {
      "type": "FIX",
      "url": "https://github.com/zalando/skipper/pull/4041"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Skipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding: chunked / HTTP/2 requests"
}