{"id":"CVE-2026-27839","aliases":["GHSA-g8gc-6c4h-jg86","PYSEC-2026-3422"],"url":"https://o3.security/vulnerability/CVE-2026-27839","summary":"wger: IDOR in nutritional_values endpoints exposes private dietary data via direct ORM lookup","details":"wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, three `nutritional_values` action endpoints fetch objects via `Model.objects.get(pk=pk)` — a raw ORM call that bypasses the user-scoped queryset. Any authenticated user can read another user's private nutrition plan data, including caloric intake and full macro breakdown, by supplying an arbitrary PK. Commit 29876a1954fe959e4b58ef070170e81703dab60e contains a fix for the issue.","published":"2026-02-26T22:07:43.640Z","modified":"2026-08-12T03:51:35.248299139Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"epss":{"score":0.0026,"percentile":0.17486,"asOf":"2026-09-04"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"wger","fixedVersion":null}],"fix":{"url":"https://github.com/wger-project/wger/commit/29876a1954fe959e4b58ef070170e81703dab60e","label":"wger-project/wger@29876a1"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27839.json"},{"type":"ADVISORY","url":"https://github.com/wger-project/wger/security/advisories/GHSA-g8gc-6c4h-jg86"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27839"},{"type":"FIX","url":"https://github.com/wger-project/wger/commit/29876a1954fe959e4b58ef070170e81703dab60e"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:35.248299139Z"}}