CVE-2026-110223
LowCVSS 3.1Exploitation Probability (EPSS)
Low risk19th percentile - higher than 19% of all known CVEs
Summary
Kavita 0.9.0 through 0.9.1.4 contains a server-side request forgery vulnerability that allows authenticated users to bypass the SSRF blocklist through DNS rebinding or HTTPS redirects. Attackers can submit a URL to POST /api/Cbl/upload-cbl-file whose host rebinds or redirects to internal addresses after validation, enabling blind internal port and service probing.
Risk Assessment
The risk includes the ability to probe internal ports and services, potentially revealing vulnerable services or enabling further attacks on the internal infrastructure.
Recommendation
Update Kavita to a patched version and consider strengthening URL validation to prevent bypass via DNS rebinding and redirects.
Other vulnerabilities in Kavita
See all- CVE-2026-47202Critical
Improper token validation vulnerability in Kavita prior to 0.9.0.2. A remote, unauthenticated attacker can obtain a JWT for any user (including admins) given knowledge of their username.
- CVE-2026-44776Medium
Kavita, a cross-platform reading server, has a vulnerability in download and size-check endpoints. A low-privileged user can access content from libraries they are not assigned to if they know the chapter, volume, or series IDs.
- CVE-2026-44775Medium
In Kavita prior to 0.9.0, the ReaderController.GetImage endpoint is decorated with [AllowAnonymous], allowing unauthenticated access to page images from any chapter in any library. The apiKey parameter is not validated, and entity IDs are sequential, enabling easy enumeration of all server content.
Original NVD description (English source)
Kavita 0.9.0 through 0.9.1.4 contains a server-side request forgery vulnerability that allows authenticated users to bypass the SSRF blocklist through DNS rebinding or HTTPS redirects. Attackers can submit a URL to POST /api/Cbl/upload-cbl-file whose host rebinds or redirects to internal addresses after validation, enabling blind internal port and service probing.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS