{"answers":{"affected":"10 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-2026-41520 in the wild and no public exploit code.","fix":"Upgrade github.com/cilium/cilium to a fixed version for your release line: 1.17.15, 1.18.9 or 1.19.3.","what":"CVE-2026-41520 is a high-severity vulnerability in cilium, published on 8 May 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-2026-41520 and fix it if it is affected.\n\nWhat it is: CVE-2026-41520 is a high-severity vulnerability in cilium, published on 8 May 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-2026-41520 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 1.17.15, 1.18.9, 1.19.3\n- github.com/cilium/cilium (Go): affected all versions; fixed in 1.17.15\n- github.com/cilium/cilium (Go): affected all versions; fixed in 1.17.15\n- github.com/cilium/cilium (Go): affected from 1.18.0; fixed in 1.18.9\n- github.com/cilium/cilium (Go): affected from 1.18.0; fixed in 1.18.9\n- github.com/cilium/cilium (Go): affected from 1.19.0; fixed in 1.19.3\n- github.com/cilium/cilium (Go): affected from 1.19.0; fixed in 1.19.3\n- cilium (Bitnami): affected all versions; fixed in 1.17.15, 1.18.9, 1.19.3\n- cilium-operator (Bitnami): affected all versions; fixed in 1.17.15, 1.18.9, 1.19.3\n- hubble-relay (Bitnami): affected all versions; fixed in 1.17.15, 1.18.9, 1.19.3\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-2026-41520/ (Markdown: https://insights.sbomify.com/CVE-2026-41520/index.md)","id":"CVE-2026-41520","markdown":"https://insights.sbomify.com/CVE-2026-41520/index.md","name":"CVE-2026-41520","record":{"aliases":["BIT-cilium-2026-41520","BIT-cilium-operator-2026-41520","BIT-hubble-relay-2026-41520","GHSA-gj49-89wh-h4gj","GO-2026-5400","MINI-2982-g347-rjq7","MINI-398c-766m-jgxg","MINI-3g7g-7w5r-w24g","MINI-5gfj-vj9c-x7gq","MINI-6xfm-q37g-9mx6","MINI-8cfm-rvvq-r7wm","MINI-8jw2-8f5r-r59v","MINI-99rq-c3pm-2gm9","MINI-f5q5-282j-fvj4","MINI-f8cc-3cv4-5cp4","MINI-fm2w-5gp6-2pq5","MINI-hh56-836r-2r7j","MINI-m338-58xh-hr6c","MINI-p863-67r3-vfpc","MINI-q273-px8m-r54v","MINI-q4cw-492g-9mhw","MINI-x7vg-6rcv-fff8","MINI-xj9p-qqfh-pcm8"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Cilium networking","requires_auth":"high_privilege","summary":"Attackers can obtain sensitive data from Cilium bugtool archives when WireGuard encryption is enabled, requiring an upgrade to patched versions.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"cilium","vendor":"cilium"}],"cvss":{"score":7.9,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-312","name":"Cleartext Storage of Sensitive Information"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. Prior to versions 1.17.15, 1.18.9, and 1.19.3, the output of cilium-bugtool can contain sensitive data when the tool is run against Cilium deployments with WireGuard encryption enabled. This issue has been patched in versions 1.17.15, 1.18.9, and 1.19.3.","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":"Cillium exposes sensitive information included in the cilium-bugtool debug archive","id":"CVE-2026-41520","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":10,"n_references":4,"next":{"headline":"xrdp: lib_framebuffer_update Has Integer Overflow Heap Info Leak \u0026 ASLR Bypass","id":"CVE-2026-41521"},"packages":[{"ecosystem":"Bitnami","fixed":["1.17.15","1.18.9","1.19.3"],"introduced":["0","1.18.0","1.19.0"],"last_affected":[],"package":"cilium","purl":"pkg:bitnami/cilium","source":"BIT-cilium-2026-41520"},{"ecosystem":"Bitnami","fixed":["1.17.15","1.18.9","1.19.3"],"introduced":["0","1.18.0","1.19.0"],"last_affected":[],"package":"cilium-operator","purl":"pkg:bitnami/cilium-operator","source":"BIT-cilium-operator-2026-41520"},{"ecosystem":"Bitnami","fixed":["1.17.15","1.18.9","1.19.3"],"introduced":["0","1.18.0","1.19.0"],"last_affected":[],"package":"hubble-relay","purl":"pkg:bitnami/hubble-relay","source":"BIT-hubble-relay-2026-41520"},{"ecosystem":"Go","fixed":["1.17.15","1.18.9","1.19.3"],"introduced":["0","1.18.0","1.19.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GO-2026-5400"},{"ecosystem":"Go","fixed":["1.17.15"],"introduced":["0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-gj49-89wh-h4gj"},{"ecosystem":"Go","fixed":["1.17.15"],"introduced":["0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-gj49-89wh-h4gj"},{"ecosystem":"Go","fixed":["1.18.9"],"introduced":["1.18.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-gj49-89wh-h4gj"},{"ecosystem":"Go","fixed":["1.18.9"],"introduced":["1.18.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-gj49-89wh-h4gj"},{"ecosystem":"Go","fixed":["1.19.3"],"introduced":["1.19.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":null,"source":"GHSA-gj49-89wh-h4gj"},{"ecosystem":"Go","fixed":["1.19.3"],"introduced":["1.19.0"],"last_affected":[],"package":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","source":"GHSA-gj49-89wh-h4gj"}],"prev":{"headline":"Weblate's API Token Not Invalidated on Password Change","id":"CVE-2026-41519"},"products":["cilium"],"published":"2026-05-08","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":"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":"total"},"state":"PUBLISHED","updated":"2026-05-13","vendors":["cilium"]},"summary":"Attackers can obtain sensitive data from Cilium bugtool archives when WireGuard encryption is enabled, requiring an upgrade to patched versions.","url":"https://insights.sbomify.com/CVE-2026-41520/"}