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TI-2026-37941 Aliases CVE-2026-52833GHSA-3v79-m2cg-89ww

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

Priority HIGH 70CWE-94Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-94.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00552 46th percentileScored 2026-11-07
Fix Fixed nuclio (nuclio): 1.16.5github.com/nuclio/nuclio (Go): 1.16.5

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

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 1.16.51.16.5Patch availableCNA
—github.com/nuclio/nuclio (Go)before 1.16.51.16.5Patch availableGHSA-3v79-m2cg-89ww
  • nuclio Vendornuclio Affected before 1.16.5 Fixed in 1.16.5 Patch available CNA
  • github.com/nuclio/nuclio (Go) Vendor— Affected before 1.16.5 Fixed in 1.16.5 Patch available GHSA-3v79-m2cg-89ww

Remediation

  • Fix · CNA nuclio (nuclio) Fixed in 1.16.5
  • Fix · GHSA-3v79-m2cg-89ww github.com/nuclio/nuclio (Go) Fixed in 1.16.5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-52833
  2. 2026-10-03 Alias added: GHSA-3v79-m2cg-89ww

References

Other 5

  • 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-2026-33468 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-2026-55235 Nuclio: Unauthenticated OS command injection via namespace header in list-all resource path on local platform CVSS 4.0HIGH 8.7
  • 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