{"cve":"CVE-2026-34992","nvd":{"published":"2026-04-06T17:17:12.183","modified":"2026-06-17T10:39:57.337","status":"Analyzed","description":"Antrea is a Kubernetes networking solution intended to be Kubernetes native. Prior to 2.4.5 and 2.5.2, a missing encryption vulnerability affects inter-Node Pod traffic. In Antrea clusters configured for dual-stack networking with IPsec encryption enabled (trafficEncryptionMode: ipsec), Antrea fails to apply encryption for IPv6 Pod traffic. While the IPv4 traffic is correctly encrypted via ESP (Encapsulating Security Payload), traffic using IPv6 is transmitted in plaintext. This occurs because the packets are encapsulated (using Geneve or VXLAN) but bypass the IPsec encryption layer. Impacted Users: users with dual-stack clusters and IPsec encryption enabled. Single-stack IPv4 or IPv6 clusters are not affected. This vulnerability is fixed in 2.4.5 and 2.5.2.","cvss_v4":{"vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":7.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","score":7.5},"cwes":["CWE-311"],"references":["https://github.com/antrea-io/antrea/blob/main/docs/traffic-encryption.md","https://github.com/antrea-io/antrea/commit/738bad662b20a5d358d19466936176ef580a9b07","https://github.com/antrea-io/antrea/pull/7757","https://github.com/antrea-io/antrea/pull/7759","https://github.com/antrea-io/antrea/security/advisories/GHSA-qcmw-8mm4-4p28"],"products":["linuxfoundation:antrea"],"source":"nvd","synced_at":"2026-10-19T22:28:59.047572785+00:00"},"epss":{"cve":"CVE-2026-34992","score":0.00121,"percentile":0.01902,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qcmw-8mm4-4p28","url":"https://osv.dev/vulnerability/GHSA-qcmw-8mm4-4p28","summary":"Antrea has Missing Encryption of Sensitive Data","modified":"2026-06-25T23:11:12.656885871Z","packages":[{"ecosystem":"Go","name":"antrea.io/antrea","purl":"pkg:golang/antrea.io/antrea","ranges":[">=1.11.0"],"fixed":[]},{"ecosystem":"Go","name":"antrea.io/antrea","purl":"pkg:golang/antrea.io/antrea","ranges":[">=2.5.0"],"fixed":[]},{"ecosystem":"Go","name":"antrea.io/antrea","purl":"pkg:golang/antrea.io/antrea","ranges":["<1.11.0-alpha.0.0.20260225185322-738bad662b20"],"fixed":["1.11.0-alpha.0.0.20260225185322-738bad662b20"]}]},{"id":"GO-2026-5579","url":"https://osv.dev/vulnerability/GO-2026-5579","summary":"Antrea has Missing Encryption of Sensitive Data in antrea.io/antrea","modified":"2026-06-25T23:01:32.597537595Z","packages":[{"ecosystem":"Go","name":"antrea.io/antrea","purl":"pkg:golang/antrea.io/antrea","ranges":["all versions"],"fixed":[]},{"ecosystem":"Go","name":"antrea.io/antrea","purl":"pkg:golang/antrea.io/antrea","ranges":["<1.11.0-alpha.0.0.20260225185322-738bad662b20"],"fixed":["1.11.0-alpha.0.0.20260225185322-738bad662b20"]},{"ecosystem":"Go","name":"antrea.io/antrea","purl":"pkg:golang/antrea.io/antrea","ranges":[">=1.11.0"],"fixed":[]}]}],"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."]}