CVE-2026-78160 Dolibarr CVE debrief

Who should care

Defenders responsible for Dolibarr ERP installations, especially those with remote access enabled, should assess exposure and prioritize upgrading to patched versions. This includes operators managing Dolibarr ERP systems, platform administrators, vulnerability management teams, and security teams responsible for monitoring and incident response.

Why it matters

CVE-2026-78160 is a vulnerability in Dolibarr ERP's User Notes Handler that allows for authorization bypass. Defenders should verify exposure, especially in remote access scenarios, and upgrade to patched versions 23.0.4 or 24.0.0. The attack can be initiated remotely, and there is a patch available.

• Potential unauthorized access to user notes through exploitation of the authorization bypass vulnerability.
• Need for verification of Dolibarr ERP installations to determine exposure.
• Priority on upgrading affected installations to prevent potential exploitation.
• Possible impact on data integrity if the vulnerability is exploited.

Technical summary

The vulnerability affects the User Notes Handler component of Dolibarr ERP, specifically in the /user/note.php file. The issue allows for authorization bypass through manipulation of the ID argument. The attack can be initiated remotely. Upgrading to version 23.0.4 or 24.0.0 addresses this issue. The patch identifier is 9b5229ef3a9b58d00252d327936b022fb739f149. Defenders should be aware of the potential for unauthorized access to user notes and prioritize verification of exposure, especially in remote access scenarios.

Defensive priority

Defenders should prioritize verifying exposure of Dolibarr ERP installations to this vulnerability, especially in remote access scenarios, and upgrade to patched versions as soon as possible.

Recommended defensive actions

• Verify Dolibarr ERP installations for exposure to this vulnerability, especially in remote access scenarios.
• Upgrade affected Dolibarr ERP installations to version 23.0.4 or 24.0.0.
• Monitor for potential unauthorized access attempts targeting the User Notes Handler component.
• 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 NVD entry provide details on the vulnerability, including its description, affected versions, and patch information. However, there is no information on known exploitation or specific attack scenarios.

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.