{"cve":"CVE-2026-33680","nvd":{"published":"2026-03-24T16:16:35.570","modified":"2026-06-17T10:37:54.983","status":"Analyzed","description":"Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.2, the `LinkSharing.ReadAll()` method allows link share authenticated users to list all link shares for a project, including their secret hashes. While `LinkSharing.CanRead()` correctly blocks link share users from reading individual shares via `ReadOne`, the `ReadAllWeb` handler bypasses this check by never calling `CanRead()`. An attacker with a read-only link share can retrieve hashes for write or admin link shares on the same project and authenticate with them, escalating to full admin access. Version 2.2.2 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-285"],"references":["https://github.com/go-vikunja/vikunja/commit/9efe1fadba817923c7c7f5953c3e9e9c5683bbf3","https://github.com/go-vikunja/vikunja/security/advisories/GHSA-8hp8-9fhr-pfm9","https://vikunja.io/changelog/vikunja-v2.2.2-was-released"],"products":["vikunja:vikunja"],"source":"nvd","synced_at":"2026-10-19T22:26:19.218427112+00:00"},"epss":{"cve":"CVE-2026-33680","score":0.00405,"percentile":0.34826,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-8hp8-9fhr-pfm9","url":"https://osv.dev/vulnerability/GHSA-8hp8-9fhr-pfm9","summary":"Vikjuna: Link Share Hash Disclosure via ReadAll Endpoint Enables Permission Escalation","modified":"2026-03-30T21:33:05.542398Z","packages":[{"ecosystem":"Go","name":"code.vikunja.io/api","purl":"pkg:golang/code.vikunja.io/api","ranges":["<2.2.2"],"fixed":["2.2.2"]}]},{"id":"GO-2026-4848","url":"https://osv.dev/vulnerability/GO-2026-4848","summary":"Vikjuna: Link Share Hash Disclosure via ReadAll Endpoint Enables Permission Escalation in code.vikunja.io/api","modified":"2026-03-26T21:04:11.410491Z","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."]}