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VulnerabilityPublished

CVE-2026-44776: Kareadita Kavita · Insecure Direct Object Reference

Affects Kareadita KavitaSource CVE Database V5

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Not known to be exploited · CVSS 5.9 Medium : upgrade to 0.9.0 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score
5.9Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 16% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 0.9.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Kavita and kareadita/Kavita to 0.9.0.

Affected software

ProductAffectedFixed in
KareaditaKavitaAffected
  • <0.9.0
Fixed in
  • 0.9.0
GitHubkareadita/Kavitapkg:github/kareadita/KavitaOther threatsAffected
  • <0.9.0
Fixed in
  • 0.9.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Kavita to version 0.9.0 or later, where this authorization bypass vulnerability is fixed. No other mitigation or temporary workaround is indicated. Patch status is not explicitly stated but the vendor has fixed the issue in version 0.9.0.

Description

Kavita is a cross platform reading server. Prior to 0.9.0, the download, size-check, and chapter metadata endpoints do not enforce library-level authorization. A low-privileged user who knows or guesses a chapterId, volumeId, or seriesId belonging to a library they are not assigned to can download the full file contents, query file sizes, and read metadata for that content. This affects /api/Download/volume-size, /api/Download/chapter-size, /api/Download/series-size, /api/Download/volume, /api/Download/chapter, /api/Download/series, and /api/Chapter. This vulnerability is fixed in 0.9.0.

References

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