CVE-2026-41878: CWE-639 Authorization Bypass Through User-Controlled Key in R-SOFT SERWIS DMS
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.
AI Analysis
Technical Summary
CVE-2026-41878 describes an authorization bypass vulnerability in R-SOFT SERWIS DMS where multiple file download endpoints do not properly verify user authorization. The system relies solely on session authentication to serve files by their database ID, enabling any authenticated user to access files they should not be authorized to view. This is classified as an Insecure Direct Object Reference (IDOR) vulnerability under CWE-639. The vendor fixed this issue in versions v3.19-2862 and v3.17-2580.
Potential Impact
Any authenticated user can access files belonging to other users, potentially exposing sensitive or confidential information. This compromises data confidentiality within the affected application.
Mitigation Recommendations
The vulnerability is fixed in R-SOFT SERWIS DMS versions v3.19-2862 and v3.17-2580. Users should upgrade to these or later versions to remediate the issue. Patch status is not explicitly confirmed beyond these fixed versions; therefore, verify with the vendor advisory for the latest remediation guidance.
CVE-2026-41878: CWE-639 Authorization Bypass Through User-Controlled Key in R-SOFT SERWIS DMS
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.
CVSS v4.0
Score 7.1high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-41878 describes an authorization bypass vulnerability in R-SOFT SERWIS DMS where multiple file download endpoints do not properly verify user authorization. The system relies solely on session authentication to serve files by their database ID, enabling any authenticated user to access files they should not be authorized to view. This is classified as an Insecure Direct Object Reference (IDOR) vulnerability under CWE-639. The vendor fixed this issue in versions v3.19-2862 and v3.17-2580.
Potential Impact
Any authenticated user can access files belonging to other users, potentially exposing sensitive or confidential information. This compromises data confidentiality within the affected application.
Mitigation Recommendations
The vulnerability is fixed in R-SOFT SERWIS DMS versions v3.19-2862 and v3.17-2580. Users should upgrade to these or later versions to remediate the issue. Patch status is not explicitly confirmed beyond these fixed versions; therefore, verify with the vendor advisory for the latest remediation guidance.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CERT-PL
- Date Reserved
- 2026-04-22T11:32:15.204Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a50c6ea68715ace436a3da7
Added to database: 07/10/2026, 10:18:18 UTC
Last enriched: 07/10/2026, 10:32:36 UTC
Last updated: 07/10/2026, 11:19:54 UTC
Views: 6
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