CVE-2026-29042Public exploitNetwork attack vector

Remote command execution via unsanitized arguments header

Published Mar 6, 2026 · Updated Mar 6, 2026

Command injection in Iguazio Nuclio before 1.15.20 allows remote attackers to execute commands through a crafted function request. The shell runtime reads X-Nuclio-Arguments, splits it without validation, rejoins it with a PATH-resolved handler, and passes the string to sh -c, which interprets metacharacters. A reachable HTTP-triggered shell-runtime function using a PATH-resolved handler is required; injected commands run with the function container's privileges.

CVSS severity9.8
Critical
EPSS probability2.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Iguazio Nuclio before 1.15.20 allows remote attackers to execute commands through a crafted function request. The shell runtime reads X-Nuclio-Arguments, splits it without validation, rejoins it with a PATH-resolved handler, and passes the string to sh -c, which interprets metacharacters. A reachable HTTP-triggered shell-runtime function using a PATH-resolved handler is required; injected commands run with the function container's privileges.

The record

CVE
CVE-2026-29042
Published
Mar 6, 2026
Updated
Mar 6, 2026
Vendor
Iguazio
Product
Nuclio
Classifications
CWE-75, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.15.20

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Iguazio · Nuclioversion=< 1.15.20

Published CVSS scores

8.9GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-75Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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