Incorrect authorization in Kavita - #VU147277
Published: September 7, 2026
Vulnerability identifier: #VU147277
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose shared annotation content.
The vulnerability exists due to incorrect authorization in the annotation read endpoints when processing requests for shared annotations. A remote user can request annotations for a chapter, annotation, or series outside their authorized library or age restrictions to disclose shared annotation content.
Exploitation requires annotation sharing to be enabled; it is disabled by default.
Affected software
Kavita
Remediation
Install security update from vendor's website.
Kavita - update to 0.9.1.0