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CVE-2026-79754

Nuclio: Kaniko build tempDir command injection

HIGH
7.1
CVSS Score
Published: September 2, 2026 at 04:38 PM UTC
Updated: September 9, 2026 at 09:17 PM UTC
1 product affected across 1 vendorNuclio

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Severity
HIGH7.1
Exploit prediction
EPSS 0.7%
SSVC
PoC

Description

Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. From version 1.6.19 to before version 1.17.2, Nuclio's Dashboard build pipeline does not sanitize the spec.build.tempDir field before using it to construct a shell command. When the Kaniko container builder is enabled, a user with function-create permission can inject shell metacharacters into this field and achieve arbitrary command execution inside the Dashboard container, which runs with a Kubernetes service account holding wildcard access to Secrets, Pods, Jobs, and Deployments in its namespace. This issue has been patched in version 1.17.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nuclio· Nuclio
60%
v < 1.17.2
Affected range stops below 1.17.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_CONFIRM
Source: cverecord
https://github.com/nuclio/nuclio/security/advisories/GHSA-x44h-qmrv-mh72
x_refsource_MISC
Source: cverecord
https://github.com/nuclio/nuclio/pull/4190
x_refsource_MISC
Source: cverecord
https://github.com/nuclio/nuclio/commit/e3ed7de65c20c270a2035b7c27b25800e5b1e252
x_refsource_MISC
Source: cverecord
https://github.com/nuclio/nuclio/releases/tag/1.17.2

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-77

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