CVE-2026-68582Network attack vectorHinoki check available

Cross-tenant bucket disclosure via unchecked view lookup

Published Aug 2, 2026 · Updated Aug 2, 2026

Incorrect authorization in Vikunja 0.24.0 through 2.3.0 allows remote authenticated users to read cross-tenant Kanban bucket metadata. The task-collection endpoint loads the path-supplied project view before confirming that the link-share holder may access that view, while task scope remains pinned to the shared project. Any valid project share link is sufficient to expose bucket titles, creator identity objects, and a project/view-ID existence oracle across the instance; task contents remain undisclosed.

CVSS severityUnavailable
Unscored
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Incorrect authorization in Vikunja 0.24.0 through 2.3.0 allows remote authenticated users to read cross-tenant Kanban bucket metadata. The task-collection endpoint loads the path-supplied project view before confirming that the link-share holder may access that view, while task scope remains pinned to the shared project. Any valid project share link is sufficient to expose bucket titles, creator identity objects, and a project/view-ID existence oracle across the instance; task contents remain undisclosed.

The record

CVE
CVE-2026-68582
Published
Aug 2, 2026
Updated
Aug 2, 2026
Vendor
Vikunja
Product
Vikunja
Classifications
T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0.24.0 <2.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Vikunja · Vikunjaversion=0.24.0 <2.4.0

Published CVSS scores

No CVSS assessment is available in this record.

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1213Data from Information Repositories

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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