HOMEVULNERABILITIESCVE-2026-27838
LOW

CVE-2026-27838

CWE-639Published: February 26, 2026· Updated: Mar 3, 2026

3.5
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:6.6th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-27838 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

Affected Vendors & Products

wger1 product
wger
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2026-27838
CVSS Score3.5 / 10
SeverityLOW
WeaknessCWE-639
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedFeb 26, 2026

Related CVEs (CWE-639)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2026-27838 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.