{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.16.4"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3356b86a8bfab3f960aa420310ebff765df9dede"
            },
            {
              "fixed": "19b495069eba827f39ecfc9bfb46b3faefab17f9"
            }
          ],
          "repo": "https://github.com/nuclio/nuclio",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-v5px-423j-pf7p"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-78"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52831.json"
  },
  "details": "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, \u003ccommand\u003e). 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.",
  "id": "CVE-2026-52831",
  "modified": "2026-09-05T03:30:58.041358644Z",
  "published": "2026-09-02T16:40:28.765Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nuclio/nuclio/releases/tag/1.16.4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52831.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/nuclio/nuclio/security/advisories/GHSA-v5px-423j-pf7p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52831"
    },
    {
      "type": "FIX",
      "url": "https://github.com/nuclio/nuclio/commit/3356b86a8bfab3f960aa420310ebff765df9dede"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command leads to persistent RCE"
}