{"cve":"CVE-2026-41520","nvd":{"published":"2026-05-08T23:16:35.597","modified":"2026-06-17T10:46:49.900","status":"Analyzed","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N","score":4.4},"cwes":["CWE-312","CWE-200"],"references":["https://github.com/cilium/cilium/releases/tag/v1.17.15","https://github.com/cilium/cilium/releases/tag/v1.18.9","https://github.com/cilium/cilium/releases/tag/v1.19.3","https://github.com/cilium/cilium/security/advisories/GHSA-gj49-89wh-h4gj"],"products":["cilium:cilium"],"source":"nvd","synced_at":"2026-10-19T22:33:55.586217763+00:00"},"epss":{"cve":"CVE-2026-41520","score":0.00077,"percentile":0.00096,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-gj49-89wh-h4gj","url":"https://osv.dev/vulnerability/GHSA-gj49-89wh-h4gj","summary":"Cillium exposes sensitive information included in the cilium-bugtool debug archive","modified":"2026-09-10T03:51:01.795510258Z","packages":[{"ecosystem":"Go","name":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","ranges":["<1.17.15"],"fixed":["1.17.15"]},{"ecosystem":"Go","name":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","ranges":[">=1.18.0 <1.18.9"],"fixed":["1.18.9"]},{"ecosystem":"Go","name":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","ranges":[">=1.19.0 <1.19.3"],"fixed":["1.19.3"]}]},{"id":"GO-2026-5400","url":"https://osv.dev/vulnerability/GO-2026-5400","summary":"Cillium exposes sensitive information included in the cilium-bugtool debug archive in github.com/cilium/cilium","modified":"2026-06-25T23:11:14.724327711Z","packages":[{"ecosystem":"Go","name":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","ranges":["<1.17.15",">=1.18.0 <1.18.9",">=1.19.0 <1.19.3"],"fixed":["1.17.15","1.18.9","1.19.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}