Authorization bypass through user-controlled key in Kavita - #VU147282
Published: September 7, 2026
Vulnerability identifier: #VU147282
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-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose the contents of private reading lists.
The vulnerability exists due to missing authorization in the reading-list items endpoint when retrieving items for a user-controlled reading list identifier. A remote user can request sequential reading list identifiers to disclose the contents of another user's private, non-promoted reading list.
Only items whose series are in a library accessible to the user are returned.
Affected software
Kavita
Remediation
Install security update from vendor's website.
Kavita - update to 0.9.1.0