Is CVE-2026-44776 actively exploited?

No active exploitation of CVE-2026-44776 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-44776 be exploited remotely?

Yes. CVE-2026-44776 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-44776?

CVE-2026-44776 has a CVSS score of 5.9 (MEDIUM).

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MEDIUM

CVE-2026-44776

CWE-639Published: May 26, 2026· Updated: May 26, 2026

5.9

CVSS v3.1

Official Description

Kavita is a cross platform reading server. Prior to 0.9.0, the download, size-check, and chapter metadata endpoints do not enforce library-level authorization. A low-privileged user who knows or guesses a chapterId, volumeId, or seriesId belonging to a library they are not assigned to can download the full file contents, query file sizes, and read metadata for that content. This affects /api/Download/volume-size, /api/Download/chapter-size, /api/Download/series-size, /api/Download/volume, /api/Download/chapter, /api/Download/series, and /api/Chapter. This vulnerability is fixed in 0.9.0.

NVD Source

Technical Analysis

CVE-2026-44776 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.High

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X