CVE-2026-86255

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductWger

PublishedSep 6, 2026

First seenSep 6, 2026

Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Vendor advisories

github.com/wger-project/wger/security/advisories/GHSA-v25j-wqcw-fvhj

Affected products

Product	Affected versions	Fixed in
wgerPyPI	v ≤ 2.5	—

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