CVE-2026-41878

High

Description

R-SOFT DMS is vulnerable to Insecure Direct Object Reference (IDOR) attack in multiple file download endpoints. The application fetches files from the database by ID and serves them to whoever requests them, relying only on session authentication, meaning any valid user can access any file. This issue was fixed in version v3.19-2862 and v3.17-2580.

SeverityHigh

CVSS7.1

Exploit probability—

ProductDMS

PublishedJul 10, 2026

First seenJul 10, 2026

Weakness typeCWE-639Authorization bypass through user-controlled key

How to fix

Update

R-SOFT SERWIS DMSv3.19-2862, v3.17-2580 or later

Affected products

Product	Affected versions	Fixed in
R-SOFT SERWIS DMS	v < v3.19-2862, v < v3.17-2580	v3.19-2862, v3.17-2580

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.