CVE-2026-71511 Dolibarr CVE debrief

Who should care

Defenders responsible for Dolibarr installations, especially those using versions prior to 24.0.0, should assess exposure and prioritize verification and remediation efforts. This includes IT security teams, system administrators, and operators who manage Dolibarr deployments. They should verify their system versions, restrict access to the Members REST API, and consider upgrading to mitigate the risk of offline password cracking attacks.

Why it matters

CVE-2026-71511 is a sensitive data exposure vulnerability in Dolibarr's Members REST API that allows authenticated attackers to retrieve bcrypt password verifiers, potentially enabling offline password cracking attacks. Defenders should prioritize verifying exposure, especially for Dolibarr versions prior to 24.0.0, and consider upgrading to mitigate the risk.

• Potential for offline password cracking attacks using retrieved bcrypt password verifiers.
• Increased risk of unauthorized access to sensitive data.
• Need for verification of Dolibarr version and exposure to the vulnerability.
• Potential for lateral movement within the system if credentials are compromised.

Technical summary

The vulnerability exists in Dolibarr's Members REST API, allowing authenticated attackers with member-read rights to retrieve bcrypt password verifiers by querying member endpoints. This could enable offline password cracking attacks. The issue is fixed in Dolibarr version 24.0.0. Defenders should assess the impact of this vulnerability on their systems, especially if using Dolibarr versions prior to 24.0.0, and prioritize verification and remediation efforts accordingly. The vulnerability is a sensitive data exposure issue that can be exploited by querying member endpoints.

Defensive priority

Defenders should prioritize verifying exposure and assessing the impact of this vulnerability on their systems, especially if using Dolibarr versions prior to 24.0.0.

Recommended defensive actions

• Verify if the system uses Dolibarr versions prior to 24.0.0 and assess exposure.
• Restrict access to the Members REST API to prevent unauthorized queries.
• Consider upgrading to Dolibarr version 24.0.0 or later.
• Monitor for suspicious activity related to member endpoint queries.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• 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. However, the exact scope of affected versions and systems requires further verification from official sources. Dolibarr versions prior to 24.0.0 are potentially affected. Defenders should verify exposure by checking their system versions and configurations. The vulnerability allows authenticated attackers with member-read rights to retrieve bcrypt password verifiers, which could enable offline password cracking attacks.

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.