---
id: "CVE-2026-120501"
kind: "vulnerability"
aliases: ["CVE-2026-120501"]
title: "Otter Wiki: DataTable embedding lets editors read repository-internal files"
severity: "medium"
cvss: 6.9
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["otter-wiki", "package", "python", "self-hosted"]
not_affected_if: ["auth-required-editing", "managed-hosting"]
published_at: "2026-11-02T16:17:34+00:00"
first_seen_at: "2026-11-02T16:24:04+00:00"
updated_at: "2026-11-02T16:26:44+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120501", "first_seen_at": "2026-11-02T16:24:04+00:00"}]
---

# Otter Wiki: DataTable embedding lets editors read repository-internal files

Otter Wiki versions from 2.20.1 before 2.26.2 let anyone who can edit pages embed a DataTable pointing at an absolute path such as /.git/config. The file is rendered as a table, so an attacker can read repository-internal files, including any stored remote credentials.

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

## How to check

- Check the installed Otter Wiki version against `2.20.1` to `2.26.2`.
- Confirm whether anonymous page editing is enabled in your configuration.

## Fix

- Otter Wiki: upgrade to `2.26.2` or later.

## Timeline

- 2026-11-02T16:24:04+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120501

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/an-otter-wiki-2.20.1-before-2.26.2-repository-file-disclosure-via-datatable-src
- [fix] Patch: github.com https://github.com/redimp/otterwiki/commit/263cac4981f60d92c46adf6386591cf4bc4d6835
- [fix] Release notes: github.com https://github.com/redimp/otterwiki/releases/tag/v2.26.2

## From the sources

An Otter Wiki 2.20.1 before 2.26.2 contains a file disclosure vulnerability in the DataTable embedding that allows attackers who can edit pages, including anonymous users under the default configuration, to read repository-internal files. Attackers can set an absolute src such as /.git/config to render the file as a table, exposing any stored remote credentials.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_