Tetragon: Unauthenticated Tetragon gRPC admin API accessible from hostNetwork pods

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-65960
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-06 20:17:24 UTC
Updated2026-11-12 22:18:35 UTC
DescriptionTetragon is an eBPF-based security observability and runtime enforcement project. Versions before 1.7.0 can use a Helm default that exposes the privileged Tetragon gRPC API through an unauthenticated TCP listener on localhost:54321. An attacker who can run or compromise same-node hostNetwork pods can reach the listener and invoke privileged methods without authentication. These methods can add, delete, or reconfigure tracing policies and change debug settings, potentially resulting in privilege escalation or container escape. Version 1.7.0 changes the default endpoint to a Unix-domain socket. Deployments that do not expose an unauthenticated TCP listener are not affected.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS: 0.001390000 probability, percentile 0.033290000 (date 2026-11-12)

Problem Types: CWE-306 | CWE-306 CWE-306: Missing Authentication for Critical Function

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Cilium Tetragon affected < 1.7.0 Not specified

References

ReferenceSourceLinkTags
github.com/cilium/tetragon/releases/tag/v1.7.0 [email protected] github.com
github.com/cilium/tetragon/pull/4882 [email protected] github.com
github.com/cilium/tetragon/commit/fe46101770b960ebbf39fe9749bb20d49cf178b2 [email protected] github.com
github.com/cilium/tetragon/security/advisories/GHSA-6qqg-3qf7-p3v5 [email protected] github.com
github.com/cilium/tetragon/commit/8e89933d3526f37c04f7523013ff32f8b1c6f62a [email protected] github.com
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