CVE-2026-41876: OS Command Injection in R-SOFT DMS

Severity: high (CVSS 8.7 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-10 · updated 2026-10-25
Weakness: CWE-78

Description

R-SOFT DMS is vulnerable to OS Command Injection in konwertujAction() function. The document converter executes shell commands using unsanitized file paths and format parameters. This allows an authenticated attacker to execute arbitrary system commands with the privileges of the web server user. This issue was fixed in version v3.19-2752 and v3.17-2580.

Affected products

R-SOFT SERWIS DMS: before v3.19-2752; before v3.17-2580 — fixed in v3.17-2580, v3.19-2752

How to fix

Upgrade to a fixed version: R-SOFT SERWIS DMS v3.17-2580, v3.19-2752. Check the vendor advisory for mitigations.

References

https://cert.pl/posts/2026/07/CVE-2026-41876

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