{"answers":{"affected":"11 open source packages ship an affected version, including github.com/traefik/traefik/v3, github.com/traefik/traefik and github.com/traefik/traefik/v2. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-71325 in the wild and no public exploit code.","fix":"Upgrade github.com/traefik/traefik/v3 to a fixed version for your release line: 3.6.25 or 3.7.10.","what":"CVE-2026-71325 is a medium-severity missing authorization vulnerability in Traefik Traefik, published on 6 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-71325 and fix it if it is affected.\n\nWhat it is: CVE-2026-71325 is a medium-severity missing authorization vulnerability in Traefik Traefik, published on 6 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-71325 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/traefik/traefik/v3 (Go): affected from 3.0.0; fixed in 3.6.25, 3.7.10\n- github.com/traefik/traefik/v3 (Go): affected from 3.0.0; fixed in 3.6.25\n- github.com/traefik/traefik/v3 (Go): affected from 3.0.0; fixed in 3.6.25\n- github.com/traefik/traefik/v3 (Go): affected from 3.7.0; fixed in 3.7.10\n- github.com/traefik/traefik/v3 (Go): affected from 3.7.0; fixed in 3.7.10\n- github.com/traefik/traefik (Go): affected all versions; no fix listed\n- github.com/traefik/traefik (Go): affected all versions up to 1.7.34; no fix listed\n- github.com/traefik/traefik (Go): affected all versions up to 1.7.34; no fix listed\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.11.54\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.11.54\n- github.com/traefik/traefik/v2 (Go): affected all versions; fixed in 2.11.54\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-2026-71325/ (Markdown: https://insights.sbomify.com/CVE-2026-71325/index.md)","id":"CVE-2026-71325","markdown":"https://insights.sbomify.com/CVE-2026-71325/index.md","name":"CVE-2026-71325","record":{"aliases":["GHSA-62fc-8686-hfmq","GO-2026-6203","MINI-4j52-wjg6-hqfg","MINI-8f4c-p94f-3q63","MINI-cg9v-c46j-g57q"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Traefik edge router","requires_auth":"low_privilege","summary":"Attackers can bypass namespace isolation in Traefik to access or reroute backend services from other namespaces when cross-namespace references are disabled.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"traefik","vendor":"traefik"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"},{"id":"CWE-653","name":"Improper Isolation or Compartmentalization"}],"description":"Traefik is an open-source edge router that makes publishing services a fun and easy experience. Prior to 2.11.54, 3.6.25, and 3.7.10, cross-namespace @kubernetescrd references are not rejected for TraefikService backend references resolved by the service resolver. A tenant confined by RBAC to a single namespace can therefore bind its own router to a TraefikService owned by another namespace and expose or reroute that namespace's backend, defeating the namespace isolation allowCrossNamespace=false is meant to enforce. This issue is fixed in version 2.11.54, 3.6.25, 3.7.10.","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: `allowCrossNamespace=false` bypass via `@kubernetescrd` TraefikService backendRef","id":"CVE-2026-71325","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":"traefik:traefik","products":["traefik:traefik"],"type":"missing_authorization","year":"2026"},"n_packages":11,"n_references":5,"next":{"headline":"Traefik: BasicAuth singleflight key collision allows authenticated identity spoofing","id":"CVE-2026-71326"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","source":"GO-2026-6203"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.7.34"],"package":"github.com/traefik/traefik","purl":null,"source":"GHSA-62fc-8686-hfmq"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.7.34"],"package":"github.com/traefik/traefik","purl":"pkg:golang/github.com/traefik/traefik","source":"GHSA-62fc-8686-hfmq"},{"ecosystem":"Go","fixed":["2.11.54"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":null,"source":"GHSA-62fc-8686-hfmq"},{"ecosystem":"Go","fixed":["2.11.54"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","source":"GHSA-62fc-8686-hfmq"},{"ecosystem":"Go","fixed":["2.11.54"],"introduced":["0"],"last_affected":[],"package":"github.com/traefik/traefik/v2","purl":"pkg:golang/github.com/traefik/traefik/v2","source":"GO-2026-6203"},{"ecosystem":"Go","fixed":["3.6.25","3.7.10"],"introduced":["3.0.0","3.7.0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","source":"GO-2026-6203"},{"ecosystem":"Go","fixed":["3.6.25"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":null,"source":"GHSA-62fc-8686-hfmq"},{"ecosystem":"Go","fixed":["3.6.25"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","source":"GHSA-62fc-8686-hfmq"},{"ecosystem":"Go","fixed":["3.7.10"],"introduced":["3.7.0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":null,"source":"GHSA-62fc-8686-hfmq"},{"ecosystem":"Go","fixed":["3.7.10"],"introduced":["3.7.0"],"last_affected":[],"package":"github.com/traefik/traefik/v3","purl":"pkg:golang/github.com/traefik/traefik/v3","source":"GHSA-62fc-8686-hfmq"}],"prev":{"headline":"Traefik: Cross-user response poisoning via proxied CONNECT on Traefik's shared backend keep-alive pool","id":"CVE-2026-71324"},"products":["traefik"],"published":"2026-08-06","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":"2026-08-07","vendors":["traefik"]},"summary":"Attackers can bypass namespace isolation in Traefik to access or reroute backend services from other namespaces when cross-namespace references are disabled.","url":"https://insights.sbomify.com/CVE-2026-71325/"}