Read the docs
TI-2026-55235 Aliases CVE-2026-79756

Nuclio: Unauthenticated OS command injection via namespace header in list-all resource path on local platform

Priority MEDIUM 54CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Code execution
Confidentiality · integrity · availability
None · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.17.4, the fix for unauthenticated OS command injection in the nuclio dashboard on the local/Docker platform is incomplete. The fix added validateFunctionName for function names and common.Quote() for the named-resource shell command path, but the list-all resource path (triggered when no specific resource name is provided) still interpolates the resourceNamespace parameter unquoted into a /bin/sh -c command string. An unauthenticated attacker can inject shell metacharacters via the X-Nuclio-Function-Namespace, X-Nuclio-Project-Namespace, or X-Nuclio-Function-Event-Namespace HTTP headers to achieve arbitrary command execution inside the dashboard container. This issue has been patched in version 1.17.4.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.07523 94th percentileScored 2026-11-07
Fix Fixed nuclio (nuclio): 1.17.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nuclionucliobefore 1.17.41.17.4Patch availableCNA
  • nuclio Vendornuclio Affected before 1.17.4 Fixed in 1.17.4 Patch available CNA

Remediation

  • Fix · CNA nuclio (nuclio) Fixed in 1.17.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-79756

References

Other 4

  • TI-2026-55234 Nuclio: Unauthenticated OS command injection via function namespace in docker ps --filter label (local Docker platform) CVSS 3.1HIGH 8.0
  • TI-2026-37941 Nuclio: Unsanitized runtimeAttributes.repositories injected into Groovy build.gradle leads to build-time RCE CVSS 3.1HIGH 8.0
  • TI-2026-33468 Nuclio: Missing authorization on project write paths allows any authenticated user to modify or delete any project CVSS 3.1HIGH 8.3
  • TI-2026-55233 Nuclio: Kaniko build tempDir command injection CVSS 4.0HIGH 7.1
  • TI-2026-37940 Nuclio: Unauthenticated path traversal in spec.handler allows arbitrary file write in Dashboard container CVSS 3.1MEDIUM 4.9
  • TI-2026-37939 Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command leads to persistent RCE CVSS 3.1HIGH 8.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences