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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-34992 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-B 7.1 HIGH
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

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/antrea-io/antrea/blob/main/docs/traffic-encryption.md GitHub, Inc.
https://github.com/antrea-io/antrea/commit/738bad662b20a5d358d19466936176ef580a9b07 GitHub, Inc.
https://github.com/antrea-io/antrea/pull/7757 GitHub, Inc.
https://github.com/antrea-io/antrea/pull/7759 GitHub, Inc.
https://github.com/antrea-io/antrea/security/advisories/GHSA-qcmw-8mm4-4p28 GitHub, Inc.

Weakness Enumeration

CWE-ID CWE Name Source
CWE-311 Missing Encryption of Sensitive Data GitHub, Inc.  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-34992
NVD Published Date:
04/06/2026
NVD Last Modified:
04/07/2026
Source:
GitHub, Inc.