{"answers":{"affected":"14 open source packages ship an affected version, including github.com/cilium/cilium, cilium and cilium-operator. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-27594 in the wild and no public exploit code.","fix":"Upgrade github.com/cilium/cilium to a fixed version for your release line: 1.11.15, 1.12.8 or 1.13.1.","what":"CVE-2023-27594 is a medium-severity vulnerability in cilium, published on 17 Mar 2023. 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-2023-27594 and fix it if it is affected.\n\nWhat it is: CVE-2023-27594 is a medium-severity vulnerability in cilium, published on 17 Mar 2023. 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-2023-27594 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 1.11.15, 1.12.8, 1.13.1\n- github.com/cilium/cilium (Go): affected all versions; fixed in 1.11.15\n- github.com/cilium/cilium (Go): affected all versions; fixed in 1.11.15\n- github.com/cilium/cilium (Go): affected from 1.12.0; fixed in 1.12.8\n- github.com/cilium/cilium (Go): affected from 1.12.0; fixed in 1.12.8\n- github.com/cilium/cilium (Go): affected from 1.13.0; fixed in 1.13.1\n- github.com/cilium/cilium (Go): affected from 1.13.0; fixed in 1.13.1\n- cilium (Bitnami): affected all versions; fixed in 1.11.15, 1.12.8, 1.13.1\n- cilium-operator (Bitnami): affected all versions; fixed in 1.11.15, 1.12.8, 1.13.1\n- cilium-proxy (Bitnami): affected all versions; fixed in 1.11.15, 1.12.8, 1.13.1\n- hubble (Bitnami): affected all versions; fixed in 1.11.15, 1.12.8, 1.13.1\n- hubble-relay (Bitnami): affected all versions; fixed in 1.11.15, 1.12.8, 1.13.1\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-2023-27594/ (Markdown: https://insights.sbomify.com/CVE-2023-27594/index.md)","id":"CVE-2023-27594","markdown":"https://insights.sbomify.com/CVE-2023-27594/index.md","name":"CVE-2023-27594","record":{"aliases":["BIT-cilium-2023-27594","BIT-cilium-operator-2023-27594","BIT-cilium-proxy-2023-27594","BIT-hubble-2023-27594","BIT-hubble-relay-2023-27594","BIT-hubble-ui-2023-27594","BIT-hubble-ui-backend-2023-27594","GHSA-8fg8-jh2h-f2hc","GO-2023-1643"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Cilium network security","requires_auth":"none","summary":"Attackers can bypass network policies by exploiting IPv6 routing misattribution in Cilium when NodePorts are enabled.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"cilium","vendor":"cilium"}],"cvss":{"score":4.2,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"},{"id":"CWE-285","name":"Improper Authorization"}],"description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.11.15, 1.12.8, and 1.13.1, under specific conditions, Cilium may misattribute the source IP address of traffic to a cluster, identifying external traffic as coming from the host on which Cilium is running. As a consequence, network policies for that cluster might be bypassed, depending on the specific network policies enabled.\n\nThis issue only manifests when Cilium is routing IPv6 traffic and NodePorts are used to route traffic to pods. IPv6 and endpoint routes are both disabled by default.\n\nThe problem has been fixed and is available on versions 1.11.15, 1.12.8, and 1.13.1. As a workaround, disable IPv6 routing.","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":"Cilium vulnerable to potential network policy bypass when routing IPv6 traffic","id":"CVE-2023-27594","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"security_feature_bypass","year":"2023"},"n_packages":14,"n_references":4,"next":{"headline":"Cilium eBPF filters may be temporarily removed during agent restart","id":"CVE-2023-27595"},"packages":[{"ecosystem":"Bitnami","fixed":["1.11.15","1.12.8","1.13.1"],"introduced":["0","1.12.0","1.13.0"],"last_affected":[],"package":"cilium","purl":"pkg:bitnami/cilium","source":"BIT-cilium-2023-27594"},{"ecosystem":"Bitnami","fixed":["1.11.15","1.12.8","1.13.1"],"introduced":["0","1.12.0","1.13.0"],"last_affected":[],"package":"cilium-operator","purl":"pkg:bitnami/cilium-operator","source":"BIT-cilium-operator-2023-27594"},{"ecosystem":"Bitnami","fixed":["1.11.15","1.12.8","1.13.1"],"introduced":["0","1.12.0","1.13.0"],"last_affected":[],"package":"cilium-proxy","purl":"pkg:bitnami/cilium-proxy","source":"BIT-cilium-proxy-2023-27594"},{"ecosystem":"Bitnami","fixed":["1.11.15","1.12.8","1.13.1"],"introduced":["0","1.12.0","1.13.0"],"last_affected":[],"package":"hubble","purl":"pkg:bitnami/hubble","source":"BIT-hubble-2023-27594"},{"ecosystem":"Bitnami","fixed":["1.11.15","1.12.8","1.13.1"],"introduced":["0","1.12.0","1.13.0"],"last_affected":[],"package":"hubble-relay","purl":"pkg:bitnami/hubble-relay","source":"BIT-hubble-relay-2023-27594"},{"ecosystem":"Bitnami","fixed":["1.11.15","1.12.8","1.13.1"],"introduced":["0","1.12.0","1.13.0"],"last_affected":[],"package":"hubble-ui","purl":"pkg:bitnami/hubble-ui","source":"BIT-hubble-ui-2023-27594"},{"ecosystem":"Bitnami","fixed":["1.11.15","1.12.8","1.13.1"],"introduced":["0","1.12.0","1.13.0"],"last_affected":[],"package":"hubble-ui-backend","purl":"pkg:bitnami/hubble-ui-backend","source":"BIT-hubble-ui-backend-2023-27594"},{"ecosystem":"Go","fixed":["1.11.15","1.12.8","1.13.1"],"introduced":["0","1.12.0","1.13.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GO-2023-1643"},{"ecosystem":"Go","fixed":["1.11.15"],"introduced":["0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-8fg8-jh2h-f2hc"},{"ecosystem":"Go","fixed":["1.11.15"],"introduced":["0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-8fg8-jh2h-f2hc"},{"ecosystem":"Go","fixed":["1.12.8"],"introduced":["1.12.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-8fg8-jh2h-f2hc"},{"ecosystem":"Go","fixed":["1.12.8"],"introduced":["1.12.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-8fg8-jh2h-f2hc"},{"ecosystem":"Go","fixed":["1.13.1"],"introduced":["1.13.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-8fg8-jh2h-f2hc"},{"ecosystem":"Go","fixed":["1.13.1"],"introduced":["1.13.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-8fg8-jh2h-f2hc"}],"prev":{"headline":"cilium-agent container can access the host via `hostPath` mount","id":"CVE-2023-27593"},"products":["cilium"],"published":"2023-03-17","related":[{"cvss_score":9.2,"headline":"Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access","id":"CVE-2026-49445","kev_date_added":null,"published":"2026-07-15"},{"cvss_score":8.8,"headline":"Incorrect Default Permissions in Cilium","id":"CVE-2022-29178","kev_date_added":null,"published":"2022-05-20"},{"cvss_score":8,"headline":"Insecure IPsec transport encryption in Cilium","id":"CVE-2024-28860","kev_date_added":null,"published":"2024-03-27"},{"cvss_score":7.9,"headline":"Cillium exposes sensitive information included in the cilium-bugtool debug archive","id":"CVE-2026-41520","kev_date_added":null,"published":"2026-05-08"},{"cvss_score":7.9,"headline":"Cilium leaks sensitive information in cilium-bugtool","id":"CVE-2024-37307","kev_date_added":null,"published":"2024-06-13"},{"cvss_score":7.6,"headline":"Cilium NetworkPolicy bypass via pod labels","id":"CVE-2023-39347","kev_date_added":null,"published":"2023-09-26"},{"cvss_score":7.5,"headline":"Improper Privilege Management in Cilium","id":"CVE-2022-29179","kev_date_added":null,"published":"2022-05-20"}],"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":"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":"2025-02-25","vendors":["cilium"]},"summary":"Attackers can bypass network policies by exploiting IPv6 routing misattribution in Cilium when NodePorts are enabled.","url":"https://insights.sbomify.com/CVE-2023-27594/"}