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CVE-2026-55108— KubeVela Terraform remote loader DoS via unbounded file read

Quick assessment

Affected

kubevela kubevela

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

KubeVela是KubeVela团队开源的一个现代应用程序交付平台。 KubeVela 1.9.14之前版本、1.10.0-alpha.1至1.10.9之前版本和1.11.0-alpha.1至1.11.0-alpha.4之前版本存在安全漏洞，该漏洞源于Terraform远程配置加载器在克隆仓库时未正确处理符号链接，允许具有权限的用户通过terraform.path将variables.tf指向/dev/zero，造成无限读取，导致内存耗尽、控制器OOM终止及节点内存压力。

CVSS 8.5 · High EPSS 0.75% · P55 Updated Aug 29, 2026

Possible ATT&CK Techniques 1 AI

T1070.004 · File Deletion

Affected Version Matrix 3

Vendor	Product	Version Range	Status
kubevela	kubevela	`< 1.9.14`	affected
		`>= 1.10.0-alpha.1, < 1.10.9`	affected
		`>= 1.11.0-alpha.1, < 1.11.0-alpha.4`	affected

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I. Basic Information for CVE-2026-55108

Vulnerability Information

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Vulnerability Title

KubeVela Terraform remote loader DoS via unbounded file read

Source: CVE Program / CVE List V5

Vulnerability 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.

Source: CVE Program / CVE List V5

CVSS Information

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

Source: CVE Program / CVE List V5

Vulnerability Type

在文件访问前对链接解析不恰当(链接跟随)

Source: CVE Program / CVE List V5

Vulnerability Title

KubeVela 资源管理错误漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
kubevela	kubevela	< 1.9.14	-

II. Public POCs for CVE-2026-55108

#	POC Description	Source Link	Shenlong Link

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III. Intelligence Information for CVE-2026-55108

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Patches & Fixes for CVE-2026-55108 (2)

Vendor Advisories for CVE-2026-55108 (1)

🔗 KubeVela Terraform remote loader DoS via unbounded file read · Advisory · kubevela/kubevela · GitHub Read full article x_refsource_CONFIRM

Vendor Pages for CVE-2026-55108 (3)

🔗 Release v1.9.14 · kubevela/kubevela · GitHub x_refsource_MISC
🔗 Release v1.10.9 · kubevela/kubevela · GitHub x_refsource_MISC
🔗 Release v1.11.0-alpha.4 · kubevela/kubevela · GitHub Read full article x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2026-55108

IV. Related Vulnerabilities

Same product: kubevela

Same vendor: kubevela

Same weakness: CWE-59