CVE-2026-34992

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

No CVSS.

References

Link	Resource
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

Configurations

No configuration.

History

06 Apr 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-04-06 17:17

Updated : 2026-04-07 13:20

NVD link : CVE-2026-34992

Mitre link : CVE-2026-34992

CVE.ORG link : CVE-2026-34992

JSON object : View

Products Affected

No product.

CWE

CWE-311

Missing Encryption of Sensitive Data

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