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CVE-2016-1505 — Vulnerability in radicale — CVE Details

CRITICAL

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

Published June 29, 2026Updated July 1, 2026Source: osv

Summary

The filesystem storage backend in Radicale before 1.1 on Windows allows remote attackers to read or write to arbitrary files via a crafted path, as demonstrated by /c:/file/ignore.

Advisory Timeline

  • First published June 29, 2026 (105 days ago).
  • Last revised July 1, 2026 — 2 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

pip
Update radicale to 1.1 or later
pip install "radicale>=1.1"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: pypi (1).

PackageEcosystemAffectedFixed In
radicale
pypi
0.10, 0.2, 0.3, 0.4 (+14 more)1.1

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 10.0 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

References

Frequently Asked Questions

What is CVE-2016-1505?
Radicale is vulnerable to directory traversal on Windows Filesystem Storage Backend component This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 10.0/10).
How do I check if my project is affected by CVE-2016-1505?
CVE-2016-1505 affects radicale. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2016-1505 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
10.0

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

PYSEC-2026-512
GHSA-84cw-mxhv-qvv4

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