PT-2026-43353 · Kavita · Kavita

Zerosteiner · CVE-2026-47202 · Published 2026-05-26 · Updated 2026-05-26

Positive Technologies (AI Summary)

CVSS v4.0

9.3

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Kavita versions prior to 0.9.0.2

Description An improper token validation flaw allows a remote and unauthenticated attacker to request a JSON Web Token (JWT)—a compact, URL-safe means of representing claims to be transferred between two parties—for any user, including administrators, provided the attacker knows the target username.

Recommendations Update to version 0.9.0.2.

Exploit

Fix

Insufficient Verification of Data Authenticity

Improper Authentication

Weakness Enumeration

CWE-345

CWE-697

CWE-287

Related Identifiers

CVE-2026-47202

GHSA-M2V3-FCJH-HM22

Affected Products

Kavita

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47202.json · Exploit
• https://osv.dev/vulnerability/CVE-2026-47202 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-47202 · Security Note
• https://github.com/Kareadita/Kavita/security/advisories/GHSA-m2v3-fcjh-hm22 · Note
• https://github.com/Kareadita/Kavita/releases/tag/v0.9.0.2 · Note
• https://twitter.com/CVEnew/status/2059337162567323878 · Twitter Post