{"answers":{"affected":"7 open source packages ship an affected version, including github.com/centrifugal/centrifugo, github.com/centrifugal/centrifugo/v3 and github.com/centrifugal/centrifugo/v4.","exploited":"There is no known exploitation of CVE-2026-71485 in the wild and no public exploit code.","fix":"Upgrade github.com/centrifugal/centrifugo to 6.9.0 or later.","what":"CVE-2026-71485 is a critical authentication bypass vulnerability in centrifugal centrifugo, published on 20 Aug 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-2026-71485 and fix it if it is affected.\n\nWhat it is: CVE-2026-71485 is a critical authentication bypass vulnerability in centrifugal centrifugo, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-71485 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/centrifugal/centrifugo (Go): affected all versions; no fix listed\n- github.com/centrifugal/centrifugo (Go): affected all versions; fixed in 6.9.0\n- github.com/centrifugal/centrifugo (Go): affected all versions; fixed in 6.9.0\n- github.com/centrifugal/centrifugo/v3 (Go): affected all versions; no fix listed\n- github.com/centrifugal/centrifugo/v4 (Go): affected all versions; no fix listed\n- github.com/centrifugal/centrifugo/v5 (Go): affected all versions; no fix listed\n- github.com/centrifugal/centrifugo/v6 (Go): affected all versions; fixed in 6.9.0\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-2026-71485/ (Markdown: https://insights.sbomify.com/CVE-2026-71485/index.md)","id":"CVE-2026-71485","markdown":"https://insights.sbomify.com/CVE-2026-71485/index.md","name":"CVE-2026-71485","record":{"aliases":["GHSA-9468-v6mj-fppw","GO-2026-6490"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass","privilege_escalation"],"network_reachable":"yes","non_default_config":true,"product_category":"Real-time messaging server","requires_auth":"none","summary":"Remote clients can spoof trusted headers forwarded to backends, bypassing authentication or authorization checks in proxy configurations.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"Centrifugo is an open-source scalable real-time messaging server. Prior to 6.9.0, Centrifugo copies the client-controlled protocol.ConnectRequest.headers map through OnClientConnecting in internal/client/handler.go, ConnectEvent.Headers, and SetEmulatedHeadersToContext. The requestHeaders path in internal/proxy/http.go, the requestMetadata path in internal/proxy/grpc.go, and the Consume path in internal/unigrpc/grpc.go can forward an allowlisted value as a trusted backend header or metadata value. A remote client can spoof a header such as x-trusted-user for connect, refresh, subscribe, publish, RPC, and related proxy calls when the backend relies on that header for authentication or authorization. The unidirectional gRPC transport has no transport-level HTTP header that can override the emulated value. This issue is fixed in version 6.9.0.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Centrifugo: Client-forgeable headers emulation lets any client spoof headers forwarded to proxy backends","id":"CVE-2026-71485","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":7,"n_references":4,"next":{"headline":"vLLM: Derender endpoints decode caller-supplied GenerateResponse token IDs without output bounds","id":"CVE-2026-71486"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/centrifugal/centrifugo","purl":"pkg:golang/github.com/centrifugal/centrifugo","source":"GO-2026-6490"},{"ecosystem":"Go","fixed":["6.9.0"],"introduced":["0"],"last_affected":[],"package":"github.com/centrifugal/centrifugo","purl":null,"source":"GHSA-9468-v6mj-fppw"},{"ecosystem":"Go","fixed":["6.9.0"],"introduced":["0"],"last_affected":[],"package":"github.com/centrifugal/centrifugo","purl":"pkg:golang/github.com/centrifugal/centrifugo","source":"GHSA-9468-v6mj-fppw"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/centrifugal/centrifugo/v3","purl":"pkg:golang/github.com/centrifugal/centrifugo/v3","source":"GO-2026-6490"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/centrifugal/centrifugo/v4","purl":"pkg:golang/github.com/centrifugal/centrifugo/v4","source":"GO-2026-6490"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/centrifugal/centrifugo/v5","purl":"pkg:golang/github.com/centrifugal/centrifugo/v5","source":"GO-2026-6490"},{"ecosystem":"Go","fixed":["6.9.0"],"introduced":["0"],"last_affected":[],"package":"github.com/centrifugal/centrifugo/v6","purl":"pkg:golang/github.com/centrifugal/centrifugo/v6","source":"GO-2026-6490"}],"prev":{"headline":"Horilla: Reflected Cross-Site Scripting (XSS) in Employee Filter View","id":"CVE-2026-71483"},"products":["centrifugo"],"published":"2026-08-20","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":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-25","vendors":["centrifugal"]},"summary":"Remote clients can spoof trusted headers forwarded to backends, bypassing authentication or authorization checks in proxy configurations.","url":"https://insights.sbomify.com/CVE-2026-71485/"}