{"answers":{"affected":"3 open source packages ship an affected version, including github.com/zalando/skipper.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50197 exists.","fix":"Upgrade github.com/zalando/skipper to 0.26.10 or later.","what":"CVE-2026-50197 is a high-severity vulnerability in zalando skipper, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-50197 and fix it if it is affected.\n\nWhat it is: CVE-2026-50197 is a high-severity vulnerability in zalando skipper, published on 17 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-50197 exists.\n\nAffected packages and fixed versions:\n- github.com/zalando/skipper (Go): affected all versions; fixed in 0.26.10\n- github.com/zalando/skipper (Go): affected all versions; fixed in 0.26.10\n- github.com/zalando/skipper (Go): affected all versions; fixed in 0.26.10\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-50197/ (Markdown: https://insights.sbomify.com/CVE-2026-50197/index.md)","id":"CVE-2026-50197","markdown":"https://insights.sbomify.com/CVE-2026-50197/index.md","name":"CVE-2026-50197","record":{"aliases":["GHSA-659f-rgp5-w4wf","GO-2026-5944"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"HTTP reverse proxy","requires_auth":"none","summary":"Attackers can bypass Open Policy Agent body inspection in Skipper by using chunked or HTTP/2 requests, allowing unauthorized payloads to reach upstream services.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-444","name":"Inconsistent Interpretation of HTTP Requests"}],"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.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Skipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding: chunked / HTTP/2 requests","id":"CVE-2026-50197","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"Wallos: Cross-user subscription cost inference via replacement_subscription_id","id":"CVE-2026-50198"},"packages":[{"ecosystem":"Go","fixed":["0.26.10"],"introduced":["0"],"last_affected":[],"package":"github.com/zalando/skipper","purl":null,"source":"GHSA-659f-rgp5-w4wf"},{"ecosystem":"Go","fixed":["0.26.10"],"introduced":["0"],"last_affected":[],"package":"github.com/zalando/skipper","purl":"pkg:golang/github.com/zalando/skipper","source":"GHSA-659f-rgp5-w4wf"},{"ecosystem":"Go","fixed":["0.26.10"],"introduced":["0"],"last_affected":[],"package":"github.com/zalando/skipper","purl":"pkg:golang/github.com/zalando/skipper","source":"GO-2026-5944"}],"prev":{"headline":"Steeltoe.Discovery.Eureka: Unrecognized DataCenterInfo.Name poisons entire registry fetch","id":"CVE-2026-50196"},"products":["skipper"],"published":"2026-07-17","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-20","vendors":["zalando"]},"summary":"Attackers can bypass Open Policy Agent body inspection in Skipper by using chunked or HTTP/2 requests, allowing unauthorized payloads to reach upstream services.","url":"https://insights.sbomify.com/CVE-2026-50197/"}