CVE-2026-26100 Incorrect Permission Assignment for Critical Resource in Owl opds
Attackers can manipulate files via crafted network requests due to incorrect permission assignments in the Owl OPDS server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-26100?
CVE-2026-26100 is a medium-severity missing authorization vulnerability in Owl opds, published on 20 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Incorrect Permission Assignment for Critical Resource in Owl opds 2.2.0.4 allows File Manipulation via a crafted network request.
Weakness: CWE-732
Which versions are affected by CVE-2026-26100?
It affects 1 product.
Products include Owlcyberdefense Opds-Talon.
How do I fix CVE-2026-26100?
No fix has been published for CVE-2026-26100 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-26100 being exploited?
There is no known exploitation of CVE-2026-26100 in the wild and no public exploit code.
Other vulnerabilities in Owl opds
- CVE-2026-2333 Improper Neutralization of Special Elements used in a Command ('Command Injection') in Owl opds
- CVE-2026-26093 Improper Neutralization of Special Elements used in a Command ('Command Injection') in Owl opds
- CVE-2026-26095 Incorrect Permission Assignment for Critical Resource in Owl opds
- CVE-2026-26096 Incorrect Permission Assignment for Critical Resource in Owl opds
- CVE-2026-26101 Incorrect Permission Assignment for Critical Resource in Owl opds
Sources
Also known as GHSA-988g-r4v6-j68v.