{"answers":{"affected":"2 open source packages ship an affected version, including k8s.io/ingress-nginx. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8553 in the wild and no public exploit code.","fix":"Upgrade k8s.io/ingress-nginx to 0.28.0 or later.","what":"CVE-2020-8553 is a medium-severity missing authorization vulnerability in Kubernetes ingress-nginx, published on 29 Jul 2020. An attacker needs administrator access to exploit it, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-8553 and fix it if it is affected.\n\nWhat it is: CVE-2020-8553 is a medium-severity missing authorization vulnerability in Kubernetes ingress-nginx, published on 29 Jul 2020. An attacker needs administrator access to exploit it, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-8553 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- k8s.io/ingress-nginx (Go): affected all versions; fixed in 0.28.0\n- k8s.io/ingress-nginx (Go): affected all versions; fixed in 0.28.0\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-2020-8553/ (Markdown: https://insights.sbomify.com/CVE-2020-8553/index.md)","id":"CVE-2020-8553","markdown":"https://insights.sbomify.com/CVE-2020-8553/index.md","name":"CVE-2020-8553","record":{"aliases":["GHSA-hhpm-74pm-hf35"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["privilege_escalation","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Kubernetes ingress-nginx","requires_auth":"high_privilege","summary":"Attackers with namespace creation rights can overwrite basic auth files in other namespaces, leading to privilege escalation and unauthorized access.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"kubernetes","cpe":[{"product":"ingress-nginx","vendor":"kubernetes"}],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-610","name":"Externally Controlled Reference to a Resource in Another Sphere"},{"id":"CWE-73","name":"External Control of File Name or Path"}],"description":"The Kubernetes ingress-nginx component prior to version 0.28.0 allows a user with the ability to create namespaces and to read and create ingress objects to overwrite the password file of another ingress which uses nginx.ingress.kubernetes.io/auth-type: basic and which has a hyphenated namespace or secret name.","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":"Kubernetes ingress-nginx Compromise of auth via subset/superset namespace names","id":"CVE-2020-8553","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2020"},"n_packages":2,"n_references":1,"next":{"headline":"Kubernetes man in the middle using LoadBalancer or ExternalIPs","id":"CVE-2020-8554"},"packages":[{"ecosystem":"Go","fixed":["0.28.0"],"introduced":["0"],"last_affected":[],"package":"k8s.io/ingress-nginx","purl":null,"source":"GHSA-hhpm-74pm-hf35"},{"ecosystem":"Go","fixed":["0.28.0"],"introduced":["0"],"last_affected":[],"package":"k8s.io/ingress-nginx","purl":"pkg:golang/k8s.io/ingress-nginx","source":"GHSA-hhpm-74pm-hf35"}],"prev":{"headline":"Kubernetes API server denial of service","id":"CVE-2020-8552"},"products":["ingress-nginx"],"published":"2020-07-29","related":[{"cvss_score":8.8,"headline":"ingress-nginx rewrite-target nginx configuration injection","id":"CVE-2026-3288","kev_date_added":null,"published":"2026-03-09"},{"cvss_score":8.8,"headline":"Ingress-nginx `path` sanitization can be bypassed with `log_format` directive","id":"CVE-2022-4886","kev_date_added":null,"published":"2023-10-25"},{"cvss_score":7.6,"headline":"Ingress nginx annotation injection causes arbitrary command execution","id":"CVE-2023-5043","kev_date_added":null,"published":"2023-10-25"},{"cvss_score":7.6,"headline":"Code injection via nginx.ingress.kubernetes.io/permanent-redirect annotation","id":"CVE-2023-5044","kev_date_added":null,"published":"2023-10-25"},{"cvss_score":7.6,"headline":"Ingress-nginx `path` sanitization can be bypassed with newline character","id":"CVE-2021-25748","kev_date_added":null,"published":"2023-05-24"},{"cvss_score":7.6,"headline":"Ingress-nginx path can be pointed to service account token file","id":"CVE-2021-25745","kev_date_added":null,"published":"2022-05-06"},{"cvss_score":7.6,"headline":"Ingress-nginx directive injection via annotations","id":"CVE-2021-25746","kev_date_added":null,"published":"2022-05-06"}],"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":"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Kubernetes"]},"summary":"Attackers with namespace creation rights can overwrite basic auth files in other namespaces, leading to privilege escalation and unauthorized access.","url":"https://insights.sbomify.com/CVE-2020-8553/"}