{"cve":"CVE-2023-41332","nvd":{"published":"2023-09-27T15:19:30.023","modified":"2026-06-17T06:21:49.973","status":"Modified","description":"Cilium is a networking, observability, and security solution with an eBPF-based dataplane. In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with `policy.cilium.io/proxy-visibility` annotations (in Cilium >= v1.13) or `io.cilium.proxy-visibility` annotations (in Cilium <= v1.12) causes the Cilium agent to segfault on the node to which the workload is assigned. Existing traffic on the affected node will continue to flow, but the Cilium agent on the node will not able to process changes to workloads running on the node. This will also prevent workloads from being able to start on the affected node. The denial of service will be limited to the node on which the workload is scheduled, however an attacker may be able to schedule workloads on the node of their choosing, which could lead to targeted attacks. This issue has been resolved in Cilium versions 1.14.2, 1.13.7, and 1.12.14. Users unable to upgrade can avoid this denial of service attack by enabling the Layer 7 proxy.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","score":3.5},"cwes":["CWE-755"],"references":["https://github.com/cilium/cilium/pull/27597","https://github.com/cilium/cilium/security/advisories/GHSA-24m5-r6hv-ccgp","https://github.com/cilium/cilium/pull/27597","https://github.com/cilium/cilium/security/advisories/GHSA-24m5-r6hv-ccgp"],"products":["cilium:cilium"],"source":"nvd","synced_at":"2026-10-19T21:39:34.467980132+00:00"},"epss":{"cve":"CVE-2023-41332","score":0.00513,"percentile":0.43769,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-24m5-r6hv-ccgp","url":"https://osv.dev/vulnerability/GHSA-24m5-r6hv-ccgp","summary":"Specific Cilium configurations vulnerable to DoS via Kubernetes annotations","modified":"2026-09-10T03:50:03.088990971Z","packages":[{"ecosystem":"Go","name":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","ranges":[">=1.14.0 <1.14.2"],"fixed":["1.14.2"]},{"ecosystem":"Go","name":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","ranges":["<1.12.14"],"fixed":["1.12.14"]},{"ecosystem":"Go","name":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","ranges":[">=1.13.0 <1.13.7"],"fixed":["1.13.7"]}]},{"id":"GO-2023-2079","url":"https://osv.dev/vulnerability/GO-2023-2079","summary":"Specific Cilium configurations vulnerable to DoS via Kubernetes annotations in github.com/cilium/cilium","modified":"2026-02-04T03:26:37.778938Z","packages":[{"ecosystem":"Go","name":"github.com/cilium/cilium","purl":"pkg:golang/github.com/cilium/cilium","ranges":["<1.12.14",">=1.13.0 <1.13.7",">=1.14.0 <1.14.2"],"fixed":["1.12.14","1.13.7","1.14.2"]}]}],"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."]}