{"cve":"CVE-2026-33676","nvd":{"published":"2026-03-24T16:16:34.947","modified":"2026-06-17T10:37:54.560","status":"Analyzed","description":"Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, when the Vikunja API returns tasks, it populates the `related_tasks` field with full task objects for all related tasks without checking whether the requesting user has read permission on those tasks' projects. An authenticated user who can read a task that has cross-project relations will receive full details (title, description, due dates, priority, percent completion, project ID, etc.) of tasks in projects they have no access to. Version 2.2.1 patches the issue.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-863"],"references":["https://github.com/go-vikunja/vikunja/commit/833f2aec006ac0f6643c41872e45dd79220b9174","https://github.com/go-vikunja/vikunja/pull/2449","https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v","https://vikunja.io/changelog/vikunja-v2.2.2-was-released","https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8cmm-j6c4-rr8v"],"products":["vikunja:vikunja"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-33676","score":0.00362,"percentile":0.30067,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-8cmm-j6c4-rr8v","url":"https://osv.dev/vulnerability/GHSA-8cmm-j6c4-rr8v","summary":"Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read","modified":"2026-03-26T21:11:11.623327Z","packages":[{"ecosystem":"Go","name":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","ranges":["<2.2.1"],"fixed":["2.2.1"]}]},{"id":"GO-2026-4847","url":"https://osv.dev/vulnerability/GO-2026-4847","summary":"Vikunja has Cross-Project Information Disclosure via Task Relations — Missing Authorization Check on Related Task Read in code.vikunja.io/api","modified":"2026-03-26T21:00:29.540623Z","packages":[{"ecosystem":"Go","name":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}