# CVE-2026-68582 — go-vikunja vikunja

> As of 2026-08-03, CVE-2026-68582 is a MEDIUM-severity vulnerability in go-vikunja vikunja, CVSS v3.1 6.5, EPSS 0.2% (11.4th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-68582 as of 2026-08-03; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-03

## What is CVE-2026-68582?

Vikunja versions >= 0.24.0 and <= 2.3.0 contain a broken object level authorization (BOLA) vulnerability in the task-collection endpoint (GET /api/v1/projects/{project}/views/{view}/tasks). The endpoint loads the requested project view from the URL path without verifying the caller is authorized for it. For a link-share token holder, the task scope is pinned to the share's own project, but the view is taken from the attacker-controlled path and never re-validated. As a result, a holder of any project share link can read any other tenant's kanban bucket records — bucket titles and the full created_by user object (username, name, id) — for every view in the instance. The same missing pre-authorization view load also creates a project/view-ID existence oracle (404 vs. non-404) usable by link shares and ordinary authenticated users. Task contents remain constrained to the share's own project and are not disclosed. Fixed in 2.4.0.

The record classifies CVE-2026-68582 under weakness class [CWE-639](https://intel.threadlinqs.com/cwe/CWE-639). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction, and has high impact on confidentiality. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 64 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 6.5 — MEDIUM (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **CVSS v4.0 base score:** 9.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)
- **EPSS (FIRST):** 0.2% probability of exploitation in the next 30 days, higher than 11.4% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 3.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-02, last modified 2026-08-03

## Is CVE-2026-68582 being exploited?

It currently carries a trending score of 32 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **go-vikunja**: vikunja

## How to fix CVE-2026-68582

No vendor patch reference has been recorded for CVE-2026-68582 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-68582

No threat campaign in the Threadlinqs corpus currently references CVE-2026-68582, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-08-04. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com — vendor advisory](https://github.com/go-vikunja/vikunja/security/advisories/GHSA-rj9j-8772-4h6c)

**Third-party advisory**

- [vulncheck.com — third party advisory](https://www.vulncheck.com/advisories/vikunja-broken-object-level-authorization-via-link-share-token)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-68582
Full detection coverage and IOCs for threats exploiting CVE-2026-68582 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp