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CVE-2026-52833— Nuclio: Unsanitized runtimeAttributes.repositories injected into Groovy build.gradle leads to build-time RCE

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nuclio组织的一个高性能无服务器计算平台。 Nuclio 1.16.5之前版本存在代码注入漏洞，该漏洞源于使用Go text/template渲染runtimeAttributes.repositories[]值时未进行转义，可能导致攻击者注入任意Groovy语句并在Gradle配置阶段执行。

CVSS 8.0 · High EPSS 0.55% · P45

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
nuclio nuclio < 1.16.5 affected
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I. Basic Information for CVE-2026-52833

Vulnerability Information
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Vulnerability Title
Nuclio: Unsanitized runtimeAttributes.repositories injected into Groovy build.gradle leads to build-time RCE
Source: CVE Program / CVE List V5
Vulnerability Description
Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.16.5, Nuclio's Java runtime generates a build.gradle file during function builds using Go's text/template package. The template renders runtimeAttributes.repositories[] values with the {{ . }} action, which performs no escaping. An attacker can embed a closing brace (}) to break out of the repositories {} block and append arbitrary Groovy statements that execute unconditionally during the Gradle configuration phase. This issue has been patched in version 1.16.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Nuclio 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nuclio是nuclio组织的一个高性能无服务器计算平台。 Nuclio 1.16.5之前版本存在代码注入漏洞，该漏洞源于使用Go text/template渲染runtimeAttributes.repositories[]值时未进行转义，可能导致攻击者注入任意Groovy语句并在Gradle配置阶段执行。
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
nuclio nuclio < 1.16.5 -

II. Public POCs for CVE-2026-52833

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III. Intelligence Information for CVE-2026-52833

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Patches & Fixes for CVE-2026-52833 (2)

Vendor Advisories for CVE-2026-52833 (1)

Vendor Pages for CVE-2026-52833 (1)

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-2026-52831 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-2026-79754 7.1 HIGH Nuclio: Kaniko build tempDir command injection
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-94

V. Comments for CVE-2026-52833

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