# CVE-2016-1505: PYSEC-2026-512 - Radicale is vulnerable to directory traversal on Windows Filesystem Storage Backend component

Source: https://junglewise.ai/threats/cve-2016-1505-radicale-is-vulnerable-to-directory-traversal-on-windows  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-29  
License: CC BY 4.0 with a link back

CVE-2016-1505 · Severity: low · CVSS 3 · Published 2026-06-29

Radicale is vulnerable to directory traversal on Windows Filesystem Storage Backend component

Technologies: [radicale (PyPI)](https://junglewise.ai/threats/technologies/radicale). Vendors: [PyPI](https://junglewise.ai/threats/vendors/pypi).

## Quick answers

**Is CVE-2016-1505 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2016-1505 being exploited in the wild.

**How severe is CVE-2016-1505?** Low severity, with a CVSS score of 3, published 29 June 2026.

**Which products and versions are affected?** radicale (PyPI) ECOSYSTEM:introduced=0,fixed=1.1.

**Is there a fix for CVE-2016-1505?** Yes. radicale (PyPI): upgrade to 1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2016-1505?** Check whether you run radicale (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- radicale (PyPI): upgrade to 1.1 or later

  ```sh
  pip install "radicale>=1.1"
  ```


## Affected products

- radicale (PyPI) ECOSYSTEM:introduced=0,fixed=1.1

## Identifiers

- CVE-2016-1505
- GHSA-84cw-mxhv-qvv4
- PYSEC-2026-512

## Related threats

- [Radicale is vulnerable to timing oracles and simple bruteforce attacks](https://junglewise.ai/threats/cve-2017-8342-radicale-is-vulnerable-to-timing-oracles-and-simple-bruteforce)
- [Radicale vulnerable to arbitrary file read or write](https://junglewise.ai/threats/cve-2015-8747-radicale-vulnerable-to-arbitrary-file-read-or-write)
- [Radicale regex metacharacters injection in the user name](https://junglewise.ai/threats/cve-2015-8748-radicale-regex-metacharacters-injection-in-the-user-name)