{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-112778 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-112778 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-112778 is a medium-severity missing authorization vulnerability in Traefik Traefik, published on 19 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-112778 and fix it if it is affected.\n\nWhat it is: CVE-2026-112778 is a medium-severity missing authorization vulnerability in Traefik Traefik, published on 19 Oct 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-2026-112778 in the wild and no public exploit code.\n\nAffected product: Traefik Traefik. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-112778/ (Markdown: https://insights.sbomify.com/CVE-2026-112778/index.md)","id":"CVE-2026-112778","markdown":"https://insights.sbomify.com/CVE-2026-112778/index.md","name":"CVE-2026-112778","record":{"aliases":["GHSA-35mp-944w-x8rj","GHSA-rh7m-2m44-x32f"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Traefik reverse proxy","requires_auth":"low_privilege","summary":"Attackers can bypass namespace isolation in Traefik Kubernetes providers to access other tenants' credentials and certificates via malicious annotations.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"traefik","vendor":"traefik"}],"cvss":{"score":6.4,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"Traefik before 2.11.46, 3.x before 3.6.17, and 3.7.0 lack namespace validation for Ingress and Service annotations in the Kubernetes Ingress provider, allowing references to Middlewares, ServersTransports, and TLSOptions in other namespaces. Attackers able to create or update Ingress or Service resources in one namespace can set router.middlewares or service.serverstransport annotations to obtain another tenant's injected credentials or reuse its client certificates, bypassing namespace-based tenant isolation.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Traefik before 2.11.46, 3.6.17, and 3.7.1 Cross-Namespace Resource Reference via Kubernetes Annotations","id":"CVE-2026-112778","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"traefik:traefik","products":["traefik:traefik"],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Grav API Plugin before 1.0.42 Cache Exhaustion and Page Permission Bypass","id":"CVE-2026-112779"},"packages":[],"prev":{"headline":"Craft CMS before 4.18.8 and 5.11.0 Twig create() Blocklist Bypass Leading to RCE","id":"CVE-2026-112777"},"products":["traefik"],"published":"2026-10-19","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":"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":"2026-10-19","vendors":["traefik"]},"summary":"Attackers can bypass namespace isolation in Traefik Kubernetes providers to access other tenants' credentials and certificates via malicious annotations.","url":"https://insights.sbomify.com/CVE-2026-112778/"}