Vulnerability · Published Sep 2, 2026 · Assigned by GitHub_M
CVE-2026-52832Nuclio: Unauthenticated path traversal in spec.handler allows arbitrary file write in Dashboard container
Medium 4.9
In plain English
A medium-severity path traversal in nuclio from nuclio. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/nuclio/nuclio | 1.16.5 | GHSA-wpcj-rmv4-86qg |
| Go | github.com/nuclio/nuclio | no fix listed | GO-2026-6012 |
Affected products (as reported)
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
References
- https://github.com/nuclio/nuclio/security/advisories/GHSA-wpcj-rmv4-86qg x_refsource_CONFIRM
- https://github.com/nuclio/nuclio/pull/4143 x_refsource_MISC
- https://github.com/nuclio/nuclio/commit/2a55d3a8bd4d49226cb4742020303f5bf2a0931d x_refsource_MISC
- https://github.com/nuclio/nuclio/releases/tag/1.16.5 x_refsource_MISC