Medium severity · published Feb 20, 2026
CVE-2026-26100
Incorrect Permission Assignment for Critical Resource in Owl opds
5.5
CVSS
0.1%
EPSS
No
On KEV
Description
Incorrect Permission Assignment for Critical Resource in Owl opds 2.2.0.4 allows File Manipulation via a crafted network request.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
opds · Owl
through 2.2.0.4 · source: vendor
OP
Opds-talon · Owlcyberdefense
2.2.0.4; 2.2.0.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-26100
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-26100
Third Party Advisory
https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2026-26100
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