CVE-2026-27839Public exploitNetwork attack vector

Authenticated dietary data disclosure via direct ORM lookup

Published Feb 26, 2026 · Updated Feb 26, 2026

Authorization bypass in wger 2.4 and earlier allows remote authenticated users to read other users' private nutrition data. Three nutritional_values actions in wger/nutrition/api/views.py call Model.objects.get(pk=pk), bypassing each viewset's user-scoped queryset. Default-open registration supplies the required account, and sequential primary keys expose calories, macronutrients, meals, and ingredients without victim interaction.

CVSS severity4.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in wger 2.4 and earlier allows remote authenticated users to read other users' private nutrition data. Three nutritional_values actions in wger/nutrition/api/views.py call Model.objects.get(pk=pk), bypassing each viewset's user-scoped queryset. Default-open registration supplies the required account, and sequential primary keys expose calories, macronutrients, meals, and ingredients without victim interaction.

The record

CVE
CVE-2026-27839
Published
Feb 26, 2026
Updated
Feb 26, 2026
Vendor
wger Project
Product
wger
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=<= 2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

wger Project · wgerversion=<= 2.4

Published CVSS scores

4.3GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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