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Description

Kavita is a cross platform reading server. Prior to 0.9.0, the ReaderController.GetImage endpoint is decorated with [AllowAnonymous], allowing completely unauthenticated access to page images from any chapter in any library. While the endpoint accepts an apiKey parameter, it is never validated. Since entity IDs are sequential integers, an unauthenticated attacker can trivially enumerate all content on the server. This vulnerability is fixed in 0.9.0.

PUBLISHED Reserved 2026-05-07 | Published 2026-05-26 | Updated 2026-05-27 | Assigner GitHub_M




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-306: Missing Authentication for Critical Function

Product status

< 0.9.0
affected

References

github.com/...Kavita/security/advisories/GHSA-6gc9-6r8p-5wg2

github.com/...9107bb815d/API/Controllers/ReaderController.cs

cve.org (CVE-2026-44775)

nvd.nist.gov (CVE-2026-44775)

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