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Vulnerabilities

Vulnerability · CVE-2026-27838

wger is a free, open-source workout and fitness manager.

Published Feb 26, 2026 · catalog updated Jun 17, 2026 · wger is a free,

Check if you run it

No confirmed exploitation is on record for CVE-2026-27838. EPSS is 0.26%. Act only if a listed version of wger is a free, is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (wger is a free,).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Low3.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.26%
Remediation
Version ranges on file
Affected products
cpe wger/wger · stated wger

wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling . In versions up to and including 2.4, ache keys are scoped only by — 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe wger/wgerversion unspecified
  • stated wger<= 2.4

How to fix CVE-2026-27838

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-27838. EPSS is 0.26%. Act only if a listed version of wger is a free, is installed.

Which versions are affected?

Compare what you have installed with <= 2.4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-639: Authorization Bypass Through User-Controlled Key. EPSS 0.26%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 26, 2026 · NIST NVD

    Detected

    wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling . In versions up to and including 2.4, ache keys are scoped only by — 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 e964328784e2ee2830a19

  2. Jun 17, 2026 · NIST NVD

    Updated

    wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling . In versions up to and including 2.4, ache keys are scoped only by — 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 e964328784e2ee2830a19

Sources

  • CVE.orgVulnerability recordCVE-2026-27838

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27838

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-27838

    wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling . In versions up to and including 2.4, ache keys are scoped only by — no user ID is included. When a victim has previously accessed t

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.