CVE-2026-29042
Nuclio Shell Runtime Command Injection Leading to Privilege Escalation
Description
Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.15.20, the Nuclio Shell Runtime component contains a command injection vulnerability in how it processes user-supplied arguments. When a function is invoked via HTTP, the runtime reads the X-Nuclio-Arguments header and directly incorporates its value into shell commands without any validation or sanitization. This issue has been patched in version 1.15.20.
INFO
Published Date :
March 6, 2026, 7:16 a.m.
Last Modified :
March 10, 2026, 7:32 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Nuclio to version 1.15.20 or newer.
- Ensure arguments are validated and sanitized.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-29042.
| URL | Resource |
|---|---|
| https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5a | Patch |
| https://github.com/nuclio/nuclio/pull/4030 | Issue Tracking Patch |
| https://github.com/nuclio/nuclio/releases/tag/1.15.20 | Product Release Notes |
| https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27 | Exploit Mitigation Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-29042 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-29042
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-29042 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-29042 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 10, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:iguazio:nuclio:*:*:*:*:*:*:*:* versions up to (excluding) 1.15.20 Added Reference Type GitHub, Inc.: https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5a Types: Patch Added Reference Type GitHub, Inc.: https://github.com/nuclio/nuclio/pull/4030 Types: Issue Tracking, Patch Added Reference Type GitHub, Inc.: https://github.com/nuclio/nuclio/releases/tag/1.15.20 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27 Types: Exploit, Mitigation, Vendor Advisory -
New CVE Received by [email protected]
Mar. 06, 2026
Action Type Old Value New Value Added Description Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.15.20, the Nuclio Shell Runtime component contains a command injection vulnerability in how it processes user-supplied arguments. When a function is invoked via HTTP, the runtime reads the X-Nuclio-Arguments header and directly incorporates its value into shell commands without any validation or sanitization. This issue has been patched in version 1.15.20. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-75 Added Reference https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5a Added Reference https://github.com/nuclio/nuclio/pull/4030 Added Reference https://github.com/nuclio/nuclio/releases/tag/1.15.20 Added Reference https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27