What is CVE-2026-2333?

CVE-2026-2333 is a critical-severity vulnerability in Owl Opds, classified under Command Injection. CVSS score: 9.8/10. Published 2026-02-20.

How severe is CVE-2026-2333?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Owl Opds

CVE-2026-2333

Improper Neutralization of Special Elements used in a Command ('Command Injection') in Owl opds 2.2.0.4 allows Command Injection via a crafted network request.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.010 (60.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Owl Opds — versions 0
Owlcyberdefense Opds-100
Owlcyberdefense Opds-1000
Owlcyberdefense Opds-talon — versions 2.2.0.4

Weakness classification (CWE)

CWE-77 — Command Injection

References

prodsec@nozominetworks.com (Broken Link, third-party-advisory)

Frequently asked questions

What is CVE-2026-2333?: CVE-2026-2333 is a critical-severity vulnerability in Owl Opds, classified under Command Injection. CVSS score: 9.8/10. Published 2026-02-20.
How severe is CVE-2026-2333?: Critical severity. CVSS v3 base score is 9.8 out of 10.