{"answers":{"affected":"3 open source packages ship an affected version, including Traefik and github.com/traefik/traefik. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-65601 in the wild and no public exploit code.","fix":"Upgrade Traefik to 3.7.7 or later.","what":"CVE-2026-65601 is a medium-severity missing authorization vulnerability in Traefik Traefik, published on 22 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-65601 and fix it if it is affected.\n\nWhat it is: CVE-2026-65601 is a medium-severity missing authorization vulnerability in Traefik Traefik, published on 22 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-65601 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Traefik (Go): affected from 3.7.0; fixed in 3.7.7\n- Traefik (Go): affected from 3.7.0; fixed in 3.7.7\n- github.com/traefik/traefik (Go): affected all versions; no fix listed\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-2026-65601/ (Markdown: https://insights.sbomify.com/CVE-2026-65601/index.md)","id":"CVE-2026-65601","markdown":"https://insights.sbomify.com/CVE-2026-65601/index.md","name":"CVE-2026-65601","record":{"aliases":["GHSA-qq9q-x9w4-chhj","GO-2026-6198","MINI-8w5m-65pq-3vfw","MINI-chpq-j4gc-rh8x"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Traefik reverse proxy","requires_auth":"low_privilege","summary":"Traefik allows low-privileged users to inject headers by bypassing namespace checks in Kubernetes Gateway API configurations.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"traefik","vendor":"traefik"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N","version":"4.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubernetes Gateway API provider. When resolving HTTPRoute.spec.rules[].backendRefs[].filters[].extensionRef, Traefik used the backend Service namespace instead of the HTTPRoute namespace. A low-privileged route author holding a ReferenceGrant for a cross-namespace Service could therefore bind a Traefik Middleware from the backend namespace without a separate grant for that middleware, potentially injecting trusted reverse-proxy identity headers into downstream requests. The issue is fixed in version 3.7.7.","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":"Traefik before 3.7.7 Namespace Confusion via HTTPRoute ExtensionRef","id":"CVE-2026-65601","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"traefik:traefik","products":["traefik:traefik"],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Traefik before 3.6.23 IngressRouteTCP ServersTransport Namespace Bypass","id":"CVE-2026-65602"},"packages":[{"ecosystem":"Go","fixed":["3.7.7"],"introduced":["3.7.0"],"last_affected":[],"package":"Traefik","purl":null,"source":"GHSA-qq9q-x9w4-chhj"},{"ecosystem":"Go","fixed":["3.7.7"],"introduced":["3.7.0"],"last_affected":[],"package":"Traefik","purl":"pkg:golang/Traefik","source":"GHSA-qq9q-x9w4-chhj"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","source":"GO-2026-6198"}],"prev":{"headline":"Traefik before v2.11.52 Authentication Bypass via ReplacePathRegex","id":"CVE-2026-65600"},"products":["traefik"],"published":"2026-07-22","related":[{"cvss_score":9.8,"headline":"HTTP client can remove the X-Forwarded headers in Traefik","id":"CVE-2024-45410","kev_date_added":null,"published":"2024-09-19"},{"cvss_score":9.3,"headline":"Traefik v3.7.0 Authentication Bypass via from-to-www-redirect","id":"CVE-2026-88877","kev_date_added":null,"published":"2026-09-10"},{"cvss_score":9.3,"headline":"Traefik before v2.11.55 and v3.0.0 through v3.7.10 Authentication Bypass via digestAuth","id":"CVE-2026-85595","kev_date_added":null,"published":"2026-09-04"},{"cvss_score":9.1,"headline":"Traefik HTTP/3 Backend NTLM Connection Reuse","id":"CVE-2026-88007","kev_date_added":null,"published":"2026-09-10"},{"cvss_score":8.8,"headline":"Traefik: Rootless HTTP/1 request-target routes as \"/\" but is forwarded verbatim, bypassing path-scoped routing, middleware guards and access logging","id":"CVE-2026-88009","kev_date_added":null,"published":"2026-09-10"},{"cvss_score":8.8,"headline":"Traefik has a possible vulnerability with the path matchers","id":"CVE-2025-32431","kev_date_added":null,"published":"2025-04-21"},{"cvss_score":8.2,"headline":"Traefik v3.7 Authentication Bypass via TLS Option Conflict","id":"CVE-2026-85596","kev_date_added":null,"published":"2026-09-04"}],"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":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["traefik"]},"summary":"Traefik allows low-privileged users to inject headers by bypassing namespace checks in Kubernetes Gateway API configurations.","url":"https://insights.sbomify.com/CVE-2026-65601/"}