CVE-2026-75505: EspoCRM mass-update attachment access control bypass

CVE-2026-75505 · Severity: info · Published 2026-10-15

EspoCRM is an open-source customer relationship management system that manages business contacts and interactions. An authenticated user with mass-update permissions can copy attachments from any record by knowing the attachment identifier, bypassing access controls and exposing confidential file contents. While obtaining the identifier requires knowledge of internal IDs, a malicious employee with update rights could extract sensitive documents they are not authorized to view.

Technologies: Espocrm. Vendors: Espocrm.

Quick answers

Is CVE-2026-75505 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-75505 being exploited in the wild.
How severe is CVE-2026-75505?
Informational severity, published 15 October 2026.
Which products and versions are affected?
Espocrm prior to 10.0.2.
Is there a fix for CVE-2026-75505?
Yes: fixed in 10.0.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-75505 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-75505?
Check whether you run Espocrm at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: 10.0.2

Technical details

The mass-update processor fails to validate whether the user has read access to an attachment before duplicating it, allowing authenticated users with mass-update permission to copy attachments and bypass record-level and field-level access restrictions. The vulnerability requires knowledge of a valid attachment identifier and valid mass-update privileges. A fix is available in version 10.0.2.

Affected products

  • EspoCRM EspoCRM prior to 10.0.2

Timeline

  • 2026-10-15: disclosed
  • 2026-07-10: patched

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.