CVE-2026-55108

KubeVela Terraform remote loader DoS via unbounded file read

HIGH
8.5
CVSS Score
Published: August 28, 2026 at 04:11 PM UTC
Updated: September 9, 2026 at 09:27 PM UTC
1 product affected across 1 vendorKubevela

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Severity
HIGH8.5
Exploit prediction
EPSS 0.8%
SSVC
PoC

Description

KubeVela is an open source application delivery platform. Prior to 1.9.14, from 1.10.0-alpha.1 until 1.10.9, and from 1.11.0-alpha.1 until 1.11.0-alpha.4, the Terraform remote configuration loader in pkg/controller/utils/capability.go, GetTerraformConfigurationFromRemote, clones a repository supplied through a core.oam.dev/v1beta1 ComponentDefinition and follows repository-controlled variables.tf or main.tf symlinks. A user with permission to create or update ComponentDefinition objects can point variables.tf to /dev/zero through terraform.path, after which os.Stat and os.ReadFile follow the link and read an unbounded stream before ParseTerraformVariables or HCL parsing can reject the content. The read can exhaust memory, OOM-kill the cluster-wide vela-core controller, cause repeated Pod restarts, and pressure node memory when no effective container limit is configured. This issue is fixed in versions 1.9.14, 1.10.9, and 1.11.0-alpha.4.

Affected

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

v < 1.10.9v < 1.11.0-alpha.4v < 1.9.14
Affected range stops below 1.10.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.11.0-alpha.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.9.14, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

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

CVSS

8.5HIGHGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-59CWE-400

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