Vulnerability · Published May 26, 2026 · Assigned by GitHub_M

CVE-2026-44775Kavita: No authentication at /api/Reader/image

Medium 6.9

In plain English

A medium-severity missing authentication in Kavita from Kareadita. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.3%top 79.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Kareadita	Kavita	< 0.9.0

Weakness: CWE-306 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://github.com/Kareadita/Kavita/security/advisories/GHSA-6gc9-6r8p-5wg2 x_refsource_CONFIRM
https://github.com/Kareadita/Kavita/blob/8c686df2dbc2d0a83120e8b3f8c1269107bb815d/API/Controllers/ReaderController.cs#L116 x_refsource_MISC