---
id: "CVE-2026-126939"
page: "https://infrastack.ai/live/CVE-2026-126939"
kind: "vulnerability"
aliases: ["CVE-2026-126939"]
title: "Zipline: unauthenticated folder listing exposes file names and metadata"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["other", "self-hosted", "zipline"]
not_affected_if: ["no-upload-only-folders", "zipline-4.6.4-or-later"]
published_at: "2026-11-13T10:18:00+00:00"
first_seen_at: "2026-11-13T10:47:27+00:00"
updated_at: "2026-11-13T10:54:43+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126939", "first_seen_at": "2026-11-13T10:47:27+00:00"}]
exploit_sources: []
---

# Zipline: unauthenticated folder listing exposes file names and metadata

Link for people: https://infrastack.ai/live/CVE-2026-126939 (this .md is for agents)

Zipline before 4.6.4 lets anyone who knows a non-public upload-only folder's UUID list the files in it through GET /api/server/folder/:id by adding a page parameter. The attacker gets file names, IDs, MIME types, sizes and view counts.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Zipline version and see whether it is below `4.6.4`.
- Look for `/api/server/folder/` routes reachable without a session on your public hostname.

## Fix

- Zipline: move to `4.6.4` or later, per the advisory the sources link.

## Timeline

- 2026-11-13T10:47:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126939

## Documents

- [advisory] Vendor advisory: github.com https://github.com/diced/zipline/security/advisories/GHSA-jh6v-w5f3-8p4x
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/zipline-before-4.6.4-unauthenticated-file-listing-via-page-query-parameter

## From the sources

Zipline before 4.6.4 contains an information disclosure vulnerability in GET /api/server/folder/:id that allows unauthenticated attackers to list files in non-public upload-only folders. Attackers who know the folder UUID can supply the page query parameter to bypass the metadata-only early return and enumerate file names, IDs, MIME types, sizes, and view counts.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_