Medium 4.9Published Sep 2, 2026

CVE-2026-52832Nuclio: Unauthenticated path traversal in spec.handler allows arbitrary file write in Dashboard container

Updated under an hour ago (2026-10-19 06:10 UTC)

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Exploited in the last 30 days

Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.16.5, Nuclio Dashboard exposes POST /api/functions without authentication by default (NOP auth mode). The spec.handler field (e.g., mymodule:myfunction) is parsed by functionconfig.ParseHandler() which splits on : only — no path validation is applied to the module portion. This issue has been patched in version 1.16.5.

CVSS: 4.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Sep 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

nuclio nuclio nuclio:nuclio (from the name)	before 1.16.5	CNA record

References

https://github.com/nuclio/nuclio/security/advisories/GHSA-wpcj-rmv4-86qgx-refsource-confirm
https://github.com/nuclio/nuclio/pull/4143x-refsource-misc
https://github.com/nuclio/nuclio/commit/2a55d3a8bd4d49226cb4742020303f5bf2a0931dx-refsource-misc
https://github.com/nuclio/nuclio/releases/tag/1.16.5x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.