{"answers":{"affected":"10 open source packages ship an affected version, including github.com/cilium/cilium, cilium and cilium-operator.","exploited":"There is no known exploitation of CVE-2026-53935 in the wild and no public exploit code.","fix":"Upgrade github.com/cilium/cilium to a fixed version for your release line: 1.17.16, 1.18.10 or 1.19.4.","what":"CVE-2026-53935 is a medium-severity missing authorization vulnerability in cilium, published on 7 Jul 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-2026-53935 and fix it if it is affected.\n\nWhat it is: CVE-2026-53935 is a medium-severity missing authorization vulnerability in cilium, published on 7 Jul 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-2026-53935 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/cilium/cilium (Go): affected all versions; fixed in 1.17.16, 1.18.10, 1.19.4\n- github.com/cilium/cilium (Go): affected all versions; fixed in 1.17.16\n- github.com/cilium/cilium (Go): affected all versions; fixed in 1.17.16\n- github.com/cilium/cilium (Go): affected from 1.18.2; fixed in 1.18.10\n- github.com/cilium/cilium (Go): affected from 1.18.2; fixed in 1.18.10\n- github.com/cilium/cilium (Go): affected from 1.19.0; fixed in 1.19.4\n- github.com/cilium/cilium (Go): affected from 1.19.0; fixed in 1.19.4\n- cilium (Bitnami): affected all versions; fixed in 1.17.16, 1.18.10, 1.19.4\n- cilium-operator (Bitnami): affected all versions; fixed in 1.17.16, 1.18.10, 1.19.4\n- hubble-relay (Bitnami): affected all versions; fixed in 1.17.16, 1.18.10, 1.19.4\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-2026-53935/ (Markdown: https://insights.sbomify.com/CVE-2026-53935/index.md)","id":"CVE-2026-53935","markdown":"https://insights.sbomify.com/CVE-2026-53935/index.md","name":"CVE-2026-53935","record":{"aliases":["BIT-cilium-2026-53935","BIT-cilium-operator-2026-53935","BIT-hubble-relay-2026-53935","GHSA-q6h5-q3q6-f87x","GO-2026-5914","MINI-2cx6-r5r6-w4j5","MINI-2wx8-jr4j-j7cr","MINI-2x2f-xhrx-76mm","MINI-342q-3f8j-hc6c","MINI-4q44-cv7v-cj88","MINI-568c-r5rc-c6q9","MINI-5x88-jcc9-8hjq","MINI-636m-3c6f-43xc","MINI-68gg-2q7w-5hw8","MINI-7p7m-chcg-254g","MINI-7r36-p3p6-f9j8","MINI-7w4f-vv55-m4pm","MINI-8rqg-vhvg-wq2v","MINI-8v2r-rj32-xjpm","MINI-9gf8-p466-69fg","MINI-9v3v-2hff-3p7c","MINI-ggpg-j7v6-qxc8","MINI-gm5j-9923-f5c4","MINI-gxr5-vfv8-f9f2","MINI-h9v7-99hq-538h","MINI-j227-q669-crm6","MINI-mhhv-mpw3-v9cg","MINI-mm49-9x9c-pp2w","MINI-q7pv-rxrx-9qhw","MINI-rffx-rg8m-5pjr","MINI-w9hh-hh6m-9794","MINI-wmgm-6f93-f4m4","MINI-xp4j-695q-pcwg"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["data_read","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Cilium network plugin","requires_auth":"high_privilege","summary":"Users with policy creation rights can hijack cross-namespace service traffic or disrupt service translation by specifying arbitrary ClusterIPs in CiliumLocalRedirectPolicies.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Cilium is a networking, observability, and security solution. Prior to 1.17.16, from 1.18.2 to 1.18.9, and from 1.19.0 to 1.19.3, users with the ability to create CiliumLocalRedirectPolicies can specify arbitrary ClusterIPs via addressMatcher, enabling hijacking traffic to Services in any namespace and bypassing namespace scoping enforced by serviceMatcher; deleting such a policy can also corrupt Cilium internal service state and stop service translation for the affected Service. This issue is fixed in versions 1.17.16, 1.18.10, and 1.19.4.","ecosystems":["Bitnami","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":"CiliumLocalRedirectPolicy addressMatcher allows cross-namespace service traffic hijacking and can break service translation","id":"CVE-2026-53935","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":10,"n_references":7,"next":{"headline":"MCP Kotlin SDK's unbounded line buffer in StdioServerTransport/StdioClientTransport leads to memory exhaustion (DoS)","id":"CVE-2026-53937"},"packages":[{"ecosystem":"Bitnami","fixed":["1.17.16","1.18.10","1.19.4"],"introduced":["0","1.18.2","1.19.0"],"last_affected":[],"package":"cilium","purl":"pkg:bitnami/cilium","source":"BIT-cilium-2026-53935"},{"ecosystem":"Bitnami","fixed":["1.17.16","1.18.10","1.19.4"],"introduced":["0","1.18.2","1.19.0"],"last_affected":[],"package":"cilium-operator","purl":"pkg:bitnami/cilium-operator","source":"BIT-cilium-operator-2026-53935"},{"ecosystem":"Bitnami","fixed":["1.17.16","1.18.10","1.19.4"],"introduced":["0","1.18.2","1.19.0"],"last_affected":[],"package":"hubble-relay","purl":"pkg:bitnami/hubble-relay","source":"BIT-hubble-relay-2026-53935"},{"ecosystem":"Go","fixed":["1.17.16","1.18.10","1.19.4"],"introduced":["0","1.18.2","1.19.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GO-2026-5914"},{"ecosystem":"Go","fixed":["1.17.16"],"introduced":["0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-q6h5-q3q6-f87x"},{"ecosystem":"Go","fixed":["1.17.16"],"introduced":["0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-q6h5-q3q6-f87x"},{"ecosystem":"Go","fixed":["1.18.10"],"introduced":["1.18.2"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-q6h5-q3q6-f87x"},{"ecosystem":"Go","fixed":["1.18.10"],"introduced":["1.18.2"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-q6h5-q3q6-f87x"},{"ecosystem":"Go","fixed":["1.19.4"],"introduced":["1.19.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-q6h5-q3q6-f87x"},{"ecosystem":"Go","fixed":["1.19.4"],"introduced":["1.19.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-q6h5-q3q6-f87x"}],"prev":{"headline":"Maravel-Framework Vulnerable to Side-Channel Information Disclosure (Error Oracle) via Dynamic Route Fuzzing","id":"CVE-2026-53933"},"products":["cilium"],"published":"2026-07-07","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"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":"2026-07-08","vendors":["cilium"]},"summary":"Users with policy creation rights can hijack cross-namespace service traffic or disrupt service translation by specifying arbitrary ClusterIPs in CiliumLocalRedirectPolicies.","url":"https://insights.sbomify.com/CVE-2026-53935/"}