CVE-2026-86255

wger before 2.5 Uncontrolled Resource Consumption via date_sequence

MEDIUM
6.5
CVSS Score
Published: September 6, 2026 at 12:00 PM UTC
Updated: September 18, 2026 at 06:17 PM UTC
1 product affected across 1 vendorWger

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

wger before 2.5 fails to validate the maximum duration of routine date ranges, allowing authenticated users to create routines spanning arbitrarily long periods. Attackers can trigger the date_sequence computation via routine detail endpoints, forcing the server to iterate thousands of times per request and exhaust worker threads, denying service to legitimate users.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2.5
Vendor states this is fixed in 2.5 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-400

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