CVE-2026-34992 json
Missing Encryption of Sensitive Data in antrea.io/antrea
published 7mo ago modified 4mo ago also EUVD-2026-19368 , GHSA-qcmw-8mm4-4p28 , GO-2026-5579
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 2%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go antrea.io/antrea 1.11.0-alpha.0.0.20260225185322-738bad662b20
- linuxfoundation antrea 2.4.5, 2.5.2
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 7mo ago
Exploit prediction
0.13% chance of exploitation in the next 30 days, higher than 2% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | 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 |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| CNA | 4.0 | 7.1 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | antrea.io/antrea | >=1.11.0 >=2.5.0 <1.11.0-alpha.0.0.20260225185322-738bad662b20 all versions |
1.11.0-alpha.0.0.20260225185322-738bad662b20 |
Affected products
- antrea-io antrea
Classification
- Weakness
-
- CWE-311 Missing Encryption of Sensitive Data
References
-
github.com
/antrea-io/antrea/pull/7757
web, issue-tracking, patch
-
github.com
/antrea-io/antrea/pull/7759
web, issue-tracking, patch
-
github.com
/antrea-io/antrea/commit/738bad662b20a5d358d19466936176ef580a9b07
web, patch
-
github.com
/antrea-io/antrea/security/advisories/GHSA-qcmw-8mm4-4p28
web, patch, vendor-advisory, advisory
-
github.com
/antrea-io/antrea/blob/main/docs/traffic-encryption.md
web, patch, product
-
nvd.nist.gov
/vuln/detail/CVE-2026-34992
advisory
-
github.com
/antrea-io/antrea
package
Sources
- CVE List CVE-2026-34992
- GitHub Advisory GHSA-qcmw-8mm4-4p28
- NVD CVE-2026-34992
- OSV GO-2026-5579
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.