Improper Token Validation in Kavita Reading Server
CVE-2026-47202

9.3CRITICAL

Key Information:

Vendor

Kareadita

Status
Kavita
Vendor
CVE Published:
26 May 2026

What is CVE-2026-47202?

Kavita is a cross-platform reading server that has a flaw in its token validation mechanism. Specifically, versions prior to 0.9.0.2 allow a remote and unauthenticated attacker to generate a JSON Web Token (JWT) for any user, including those with administrative privileges, provided they know the username of the target. This vulnerability could potentially lead to unauthorized access and manipulation of user accounts, emphasizing the importance of upgrading to version 0.9.0.2 or later to mitigate this risk.

Affected Version(s)

Kavita < 0.9.0.2

References

https://github.com/Kareadita/Kavita/security/advisories/G...
x_refsource_CONFIRM
https://github.com/Kareadita/Kavita/releases/tag/v0.9.0.2
x_refsource_MISC

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.