CVE-2026-27839

Name: CVE-2026-27839
Creator: NVD / NIST
Published: 2026-02-26T23:16:35.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.26%

Last modified Jun 17, 2026

CVE-2026-27839 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.26% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.26%

17.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-639

Affected Software

Vendor	Product	Versions
Wger	Wger	<= 2.4

References

https://github.com/wger-project/wger/commit/29876a1954fe959e4b58ef070170e81703dab60ePatch
https://github.com/wger-project/wger/security/advisories/GHSA-g8gc-6c4h-jg86Exploit, Vendor Advisory

Timeline

Published: Feb 26, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-27839?

How severe is CVE-2026-27839?

CVE-2026-27839 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.26% probability of exploitation in the next 30 days.

How do I fix CVE-2026-27839?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-27839?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST