PatchSiren cyber security CVE debrief

CVE-2026-41878 R-SOFT SERWIS CVE debrief

CVE-2026-41878 is an Insecure Direct Object Reference (IDOR) vulnerability in R-SOFT DMS, allowing unauthorized access to sensitive files. The application fetches files from the database by ID and serves them to whoever requests them, relying only on session authentication. This issue was fixed in version v3.19-2862 and v3.17-2580. Users should be aware of the potential for data breaches and take immediate action to secure their systems.

Vendor: R-SOFT SERWIS
Product: DMS
CVSS: HIGH 7.1
CISA KEV: Not listed in stored evidence
Original CVE published: 2026-07-10
Original CVE updated: 2026-07-10
Advisory published: 2026-07-10
Advisory updated: 2026-07-10

Who should care

Users of R-SOFT DMS, especially those with access to sensitive files, should be aware of this vulnerability and take immediate action to secure their systems. This includes updating to the latest version, implementing additional authentication and authorization checks, and monitoring file access logs for suspicious activity.

Technical summary

The R-SOFT DMS is vulnerable to an 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. This means any valid user can access any file. The issue was fixed in version v3.19-2862 and v3.17-2580. Affected users should prioritize patching and implement additional security measures.

Defensive priority

High priority due to the potential for unauthorized access to sensitive files.

Recommended defensive actions

Update R-SOFT DMS to version v3.19-2862 or v3.17-2580
Implement additional authentication and authorization checks for file access
Monitor file access logs for suspicious activity
Restrict file access to only necessary users and roles
Review compensating controls for exposed systems while remediation is scheduled and verified
Check relevant monitoring, detection, and logs for exposed assets that need extra review
Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-10T10:16:23.957Z and was last modified on 2026-07-10T11:16:34.367Z. The NVD entry is currently 7.1 HIGH. The vulnerability affects R-SOFT DMS, allowing any valid user to access any file due to Insecure Direct Object Reference (IDOR) in multiple file download endpoints. Evidence is limited to public sources and may not reflect the full scope or impact of the vulnerability. Defenders should verify affected deployments and review official advisories for validation.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-10T10:16:23.957Z and has not been modified since then.