{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-16543 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-16543 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-16543 is a high-severity denial of service vulnerability, published on 29 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-2026-16543 and fix it if it is affected.\n\nWhat it is: CVE-2026-16543 is a high-severity denial of service vulnerability, published on 29 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-2026-16543 in the wild and no public exploit code.\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-2026-16543/ (Markdown: https://insights.sbomify.com/CVE-2026-16543/index.md)","id":"CVE-2026-16543","markdown":"https://insights.sbomify.com/CVE-2026-16543/index.md","name":"CVE-2026-16543","record":{"aliases":["GHSA-h4fh-j7xg-vwcx"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Kubernetes ingress controller","requires_auth":"low_privilege","summary":"Namespace-scoped users can cause cluster-wide ingress denial of service by creating duplicate CA-certificate IDs in Secrets.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Kong","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Kong Operator's embedded Kong Kubernetes Ingress Controller (KIC) allows a user with namespace-scoped Secret creation privileges to cause a cluster-wide ingress configuration denial of service. The embedded KIC collects CA-certificate Secrets across all watched namespaces using a label selector alone, without ingress-class or namespace restrictions. The CA-certificate primary key is derived from a user-supplied field in the Secret. Duplicate CA-certificate IDs cause Kong Gateway to reject the entire configuration document and halting all ingress changes cluster-wide.","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":"Kong Operator cluster-wide ingress configuration DoS via embedded KIC CA-certificate ID collision","id":"CVE-2026-16543","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Missing authorization in Red Hat Ansible Automation Platform 2","id":"CVE-2026-16544"},"packages":[],"prev":{"headline":"Import and export users and customers \u003c 2.4.5 - Admin+ SSRF via bp_avatar","id":"CVE-2026-16542"},"products":[],"published":"2026-07-29","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-07-29","vendors":[]},"summary":"Namespace-scoped users can cause cluster-wide ingress denial of service by creating duplicate CA-certificate IDs in Secrets.","url":"https://insights.sbomify.com/CVE-2026-16543/"}