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8.5
Owl opds: Malicious files can be written to your server
CVE-2026-26101
Summary
A security issue in Owl opds 2.2.0.4 allows an attacker to write files to your server by sending a specially crafted network request. This could be used to disrupt your service or steal sensitive information. To fix this, update to the latest version of Owl opds.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions | Fix available |
|---|---|---|---|
| owlcyberdefense | opds-talon | 2.2.0.4 | – |
| owlcyberdefense | opds-talon | 2.2.0.4 | – |
Original title
Incorrect Permission Assignment for Critical Resource in Owl opds 2.2.0.4 allows File Manipulation via a crafted network request.
Original description
Incorrect Permission Assignment for Critical Resource in Owl opds 2.2.0.4 allows File Manipulation via a crafted network request.
nvd CVSS3.1
7.8
nvd CVSS4.0
8.5
Vulnerability type
CWE-732
Incorrect Permission Assignment for Critical Resource
- https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2026-26101 Third Party Advisory
Published: 20 Feb 2026 · Updated: 12 Mar 2026 · First seen: 6 Mar 2026