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CVE-2026-79754— Nuclio: Kaniko build tempDir command injection

Quick assessment

Affected
nuclio nuclio
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.

Nuclio 是一个用于实时事件和数据处理的“Serverless”框架。在版本 1.6.19 至 1.17.2 之前的版本中，Nuclio 仪表盘的构建流水线在将 字段用于构建 shell 命令前，未对其进行清洗（sanitization）。当启用 Kaniko 容器构建器时，拥有函数创建权限的用户可以向该字段注入 shell 元字符，从而在运行于 Kubernetes 服务账户（该账户在其命名空间内对 Secrets、Pods、Jobs 和 Deployments 具有通配符访问权限）的 Dashboard 容

CVSS 7.1 · High
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I. Basic Information for CVE-2026-79754

Vulnerability Information
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Vulnerability Title
Nuclio: Kaniko build tempDir command injection
Source: CVE Program / CVE List V5
Vulnerability Description
Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. From version 1.6.19 to before version 1.17.2, Nuclio's Dashboard build pipeline does not sanitize the spec.build.tempDir field before using it to construct a shell command. When the Kaniko container builder is enabled, a user with function-create permission can inject shell metacharacters into this field and achieve arbitrary command execution inside the Dashboard container, which runs with a Kubernetes service account holding wildcard access to Secrets, Pods, Jobs, and Deployments in its namespace. This issue has been patched in version 1.17.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在命令中使用的特殊元素转义处理不恰当(命令注入)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
nuclio nuclio >= 1.6.19, < 1.17.2 -

II. Public POCs for CVE-2026-79754

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III. Intelligence Information for CVE-2026-79754

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Other References for CVE-2026-79754 (4)

Same Patch Batch · nuclio · 2026-09-02 · 7 CVEs total

CVE-2026-79756 8.7 HIGH Nuclio: Unauthenticated OS command injection via namespace header in list-all resource pat
CVE-2026-45730 8.3 HIGH Nuclio: Missing authorization on project write paths allows any authenticated user to modi
CVE-2026-52833 8.0 HIGH Nuclio: Unsanitized runtimeAttributes.repositories injected into Groovy build.gradle leads
CVE-2026-52831 8.0 HIGH Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command le
CVE-2026-79755 8.0 HIGH Nuclio: Unauthenticated OS command injection via function namespace in docker ps --filter
CVE-2026-52832 4.9 MEDIUM Nuclio: Unauthenticated path traversal in spec.handler allows arbitrary file write in Dash

IV. Related Vulnerabilities

Same product: nuclio
Same vendor: nuclio
Same weakness: CWE-77

V. Comments for CVE-2026-79754

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