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CVE-2023-28114

`cilium-cli` disables etcd authorization for clustermesh clusters

MEDIUM
4.1
CVSS Score
Published: March 22, 2023 at 06:30 PM UTC
Updated: June 17, 2026 at 05:46 AM UTC
1 product affected across 1 vendorCilium Cli

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Severity
MEDIUM4.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

`cilium-cli` is the command line interface to install, manage, and troubleshoot Kubernetes clusters running Cilium. Prior to version 0.13.2,`cilium-cli`, when used to configure cluster mesh functionality, can remove the enforcement of user permissions on the `etcd` store used to mirror local cluster information to remote clusters. Users who have set up cluster meshes using the Cilium Helm chart are not affected by this issue. Due to an incorrect mount point specification, the settings specified by the `initContainer` that configures `etcd` users and their permissions are overwritten when using `cilium-cli` to configure a cluster mesh. An attacker who has already gained access to a valid key and certificate for an `etcd` cluster compromised in this manner could then modify state in that `etcd` cluster. This issue is patched in `cilium-cli` 0.13.2. As a workaround, one may use Cilium's Helm charts to create their cluster.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Cilium Cli· Cilium
95%
v < 0.13.2
Affected range stops below 0.13.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

x_refsource_MISCProduct
Source: [email protected]
https://artifacthub.io/packages/helm/cilium/cilium
x_refsource_MISCPatch
Source: [email protected]
https://github.com/cilium/cilium-cli/commit/fb1427025764e1eebc4a7710d902c4f22cae2610
x_refsource_MISCRelease Notes
Source: [email protected]
https://github.com/cilium/cilium-cli/releases/tag/v0.13.2
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://github.com/cilium/cilium-cli/security/advisories/GHSA-6f27-3p6c-p5jc

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.1MEDIUM[email protected]
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-280CWE-755

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