---
id: CVE-2026-52831
title: Nuclio is a "Serverless" framework for Real-Time Events and Data Processing
summary: >-
  Nuclio is a "Serverless" framework for Real-Time Events and Data Processing.
  Prior to version 1.16.4, the Nuclio controller builds a curl invocation string
  for each cron trigger and stores it as the args of a Kubernetes CronJob
  container…
severity: high
cvss: 8
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: nuclio
product: github.com/nuclio/nuclio
affected:
  - github.com/nuclio/nuclio < 0.0.0-20260601075854-3356b86a8bfa
patched:
  - github.com/nuclio/nuclio 0.0.0-20260601075854-3356b86a8bfa
published: '2026-09-02'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:04:42.813'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-52831'
references:
  - url: >-
      https://github.com/nuclio/nuclio/commit/3356b86a8bfab3f960aa420310ebff765df9dede
    label: security-advisories@github.com
  - url: 'https://github.com/nuclio/nuclio/releases/tag/1.16.4'
    label: security-advisories@github.com
  - url: 'https://github.com/nuclio/nuclio/security/advisories/GHSA-v5px-423j-pf7p'
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-v5px-423j-pf7p'
tags:
  - nvd
  - ghsa
  - go
  - score-dispute
epss: 0.00319
epssPercentile: 0.25077
aliases:
  - GHSA-v5px-423j-pf7p
ecosystem: go
scores:
  nvd: 8
  ghsa: 10
ingestedAt: '2026-07-08T20:46:41.630Z'
---

## Overview

Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.16.4, the Nuclio controller builds a curl invocation string for each cron trigger and stores it as the args of a Kubernetes CronJob container (/bin/sh, -c, <command>). Two fields in the trigger specification flow into this string without adequate sanitization: event.headers keys and event.body. This issue has been patched in version 1.16.4.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-52831)

Affected packages:

- `github.com/nuclio/nuclio < 0.0.0-20260601075854-3356b86a8bfa`

Patched in:

- `github.com/nuclio/nuclio 0.0.0-20260601075854-3356b86a8bfa`

Source: https://github.com/advisories/GHSA-v5px-423j-pf7p