Low 3.1Published Feb 26, 2026

CVE-2026-27838wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data

Updated under an hour ago (Oct 28, 2026, 9:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for wger-project wger

Exploited in the last 30 days

wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling `self.get_object()`. In versions up to and including 2.4, ache keys are scoped only by `pk` — no user ID is included. When a victim has previously accessed their routine via the API, an attacker can retrieve the cached response for the same PK without any ownership check. Commit e964328784e2ee2830a1991d69fadbce86ac9fbf contains a patch for the issue.

CVSS: 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Weakness (CWE): CWE-639
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 2, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

wger-project wger wger_project:wger (from the name)	through 2.4	CNA record
wger wger wger:wger	through 2.4	NVD

References

References

https://github.com/wger-project/wger/security/advisories/GHSA-42cr-w2gr-m54q	x-refsource-confirm, exploit, vendor-advisory
https://github.com/wger-project/wger/commit/e964328784e2ee2830a1991d69fadbce86ac9fbf	x-refsource-misc, patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.