High 7.5Published Apr 6, 2026

CVE-2026-34992Antrea is a Kubernetes networking solution intended to be Kubernetes native.

Updated under an hour ago (2026-10-19 07:50 UTC)

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It affects linuxfoundation antrea. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for linuxfoundation antrea

Exploited in the last 30 days

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: 7.5 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-311
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

linuxfoundation antrea linuxfoundation:antrea	before 2.4.5; from 2.5.0 before 2.5.2	NVD

References

https://github.com/antrea-io/antrea/blob/main/docs/traffic-encryption.mdpatch, product
https://github.com/antrea-io/antrea/commit/738bad662b20a5d358d19466936176ef580a9b07patch
https://github.com/antrea-io/antrea/pull/7757issue-tracking, patch
https://github.com/antrea-io/antrea/pull/7759issue-tracking, patch
https://github.com/antrea-io/antrea/security/advisories/GHSA-qcmw-8mm4-4p28patch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.