CVE-2026-46691 espocrm CVE debrief

Who should care

Defenders responsible for EspoCRM installations should assess exposure and apply the patch to prevent unauthorized data access. This includes verifying if the current EspoCRM version is less than 9.3.7 and upgrading to version 9.3.7 or later. Additionally, defenders should monitor for unauthorized access to CSV data and review compensating controls for exposed systems.

Why it matters

CVE-2026-46691 is a medium-severity IDOR vulnerability in EspoCRM that allows authenticated users to leak CSV data of other users. Defenders should prioritize verifying exposure and applying the patch to prevent unauthorized data access.

• Potential unauthorized access to sensitive data
• Need to verify exposure and apply the patch

Technical summary

The vulnerability is caused by a missing entity-level ownership check in the Import exportErrors endpoint, allowing authenticated users with Import scope access to retrieve CSV data of other users. This issue is fixed in version 9.3.7. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM. The endpoint performs a scope-level check but omits the entity-level ownership check enforced by the Import AccessChecker and sibling Import endpoints. The vulnerability allows unauthorized data access, potentially leading to sensitive information disclosure.

Defensive priority

Defenders should prioritize verifying exposure and applying the patch, as the vulnerability allows unauthorized data access.

Recommended defensive actions

• Verify exposure by checking if the current EspoCRM version is less than 9.3.7
• Apply the patch by upgrading to EspoCRM version 9.3.7 or later
• Monitor for unauthorized access to CSV data
• 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
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE record and source item provide details on the vulnerability, affected versions, and fixed version. The vulnerability has a medium severity score of 6.5 and is classified as MEDIUM. The CVE record was published on 2026-10-15T14:45:03.879Z and has not been modified since then. There are no known ransomware campaign uses. The vulnerability affects EspoCRM versions prior to 9.3.7.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.