CVE-2026-47202Network attack vector

Unauthenticated account takeover via improper token validation

Published May 26, 2026 · Updated May 26, 2026

Improper authentication in Kareadita Kavita before 0.9.0.2 allows remote attackers to obtain a JWT for any known username. The public advisory identifies improper token validation but intentionally withholds the affected endpoint, comparison, and reproduction details. No account or user interaction is required, but the target username must be known; an administrator token grants control over that account and its accessible library data.

CVSS severity9.3
Critical
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Kareadita Kavita before 0.9.0.2 allows remote attackers to obtain a JWT for any known username. The public advisory identifies improper token validation but intentionally withholds the affected endpoint, comparison, and reproduction details. No account or user interaction is required, but the target username must be known; an administrator token grants control over that account and its accessible library data.

The record

CVE
CVE-2026-47202
Published
May 26, 2026
Updated
May 26, 2026
Vendor
Kareadita
Product
Kavita
Classifications
CWE-345, CWE-697, CWE-287, T1078
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 26, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.9.0.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kareadita · Kavitaversion=< 0.9.0.2

Published CVSS scores

9.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-345Insufficient Verification of Data Authenticity
CWE-697Incorrect Comparison
CWE-287Improper Authentication
T1078Valid Accounts

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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