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CVE-2026-5791 Siberguvenlik CVE debrief

CVE-2026-5791 is a cross-site request forgery (CSRF) vulnerability affecting DivvyDrive versions from 4.8.2.9 before 4.8.3.2. NVD lists the issue as CVSS 3.1 6.5 (Medium) with a network attack vector, low attack complexity, no privileges required, and user interaction required, and maps it to CWE-352. The published record is currently marked Deferred in NVD, so defenders should rely on the version scope and the official reference while tracking for any follow-up vendor clarification.

Vendor
Siberguvenlik
Product
Unknown
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-07
Original CVE updated
2026-05-10
Advisory published
2026-05-07
Advisory updated
2026-05-10

Who should care

Administrators and security teams responsible for DivvyDrive deployments, especially environments running versions 4.8.2.9 through before 4.8.3.2. Teams should prioritize systems where authenticated users can be induced to interact with untrusted content, since CSRF requires user interaction.

Technical summary

The supplied record describes a CSRF weakness in DivvyDrive. In practical terms, CSRF can allow an attacker to cause a logged-in user’s browser to submit unintended requests to the application, potentially altering state without the user’s intent. The NVD metadata for this record reports CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N and CWE-352, indicating integrity impact is the primary concern.

Defensive priority

Medium; patch promptly for any internet-facing or broadly used DivvyDrive instance.

Recommended defensive actions

  • Upgrade DivvyDrive to version 4.8.3.2 or later.
  • Review application endpoints for CSRF protections, including per-request anti-CSRF tokens and server-side validation.
  • Confirm state-changing actions require appropriate request validation and are not accepted via simple cross-origin requests.
  • Re-check session and cookie settings that affect CSRF risk, and validate any same-site protections in your deployment.
  • After updating, test the affected workflows to confirm the fixed version is deployed everywhere and no legacy instances remain.

Evidence notes

Source data ties the issue to DivvyDrive versions from 4.8.2.9 before 4.8.3.2, with NVD listing CWE-352 and CVSS 3.1 vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N. The NVD record is marked Deferred, and the supplied reference points to a Turkish government security bulletin. The vendor/source attribution in the supplied corpus is low-confidence and should be reviewed.

Official resources

CVE-2026-5791 was published on 2026-05-07 and last modified on 2026-05-10. The NVD record is marked Deferred, and the supplied corpus includes a low-confidence vendor/source attribution that should be validated before operational use.