{"cve":"CVE-2026-50197","nvd":{"published":"2026-07-17T20:17:24.087","modified":"2026-10-24T20:10:00.137","status":"Deferred","description":"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.","cvss_v4":{"vector":"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","score":7.8},"cvss_v3":null,"cwes":["CWE-444"],"references":["https://github.com/zalando/skipper/commit/3152f3b0bb52ca89c3564be42434db0a2a1cea23","https://github.com/zalando/skipper/pull/4041","https://github.com/zalando/skipper/releases/tag/v0.26.10","https://github.com/zalando/skipper/security/advisories/GHSA-659f-rgp5-w4wf","https://github.com/zalando/skipper/security/advisories/GHSA-659f-rgp5-w4wf"],"products":[],"source":"nvd","synced_at":"2026-10-25T17:50:08.599881581+00:00"},"epss":{"cve":"CVE-2026-50197","score":0.00513,"percentile":0.43454,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-659f-rgp5-w4wf","url":"https://osv.dev/vulnerability/GHSA-659f-rgp5-w4wf","summary":"Skipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding — chunked / HTTP/2 requests","modified":"2026-07-21T19:19:21.501078355Z","packages":[{"ecosystem":"Go","name":"github.com/zalando/skipper","purl":"pkg:golang/github.com/zalando/skipper","ranges":["<0.26.10"],"fixed":["0.26.10"]}]},{"id":"GO-2026-5944","url":"https://osv.dev/vulnerability/GO-2026-5944","summary":"Skipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding — chunked / HTTP/2 requests in github.com/zalando/skipper","modified":"2026-07-21T19:15:27.800057230Z","packages":[{"ecosystem":"Go","name":"github.com/zalando/skipper","purl":"pkg:golang/github.com/zalando/skipper","ranges":["<0.26.10"],"fixed":["0.26.10"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}