CVE-2026-52832Public exploitNetwork attack vectorHinoki check available

Unauthenticated arbitrary file write via handler traversal

Published Sep 2, 2026 · Updated Sep 2, 2026

Path traversal in Nuclio Dashboard before 1.16.5 allows remote attackers to write arbitrary files through the functions API. writeFunctionSourceCodeToTempFile joins the unvalidated spec.handler module with a temporary directory and passes the cleaned path and decoded source to os.WriteFile. Default NOP authentication permits network access without credentials, and writes are limited to paths accessible within the Dashboard container.

CVSS severity4.9
Medium
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in Nuclio Dashboard before 1.16.5 allows remote attackers to write arbitrary files through the functions API. writeFunctionSourceCodeToTempFile joins the unvalidated spec.handler module with a temporary directory and passes the cleaned path and decoded source to os.WriteFile. Default NOP authentication permits network access without credentials, and writes are limited to paths accessible within the Dashboard container.

The record

CVE
CVE-2026-52832
Published
Sep 2, 2026
Updated
Sep 2, 2026
Vendor
Iguazio
Product
Nuclio
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 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=< 1.16.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Iguazio · Nuclioversion=< 1.16.5

Published CVSS scores

4.9GitHub CNACVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

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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