Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-71509

CVE-2026-71509HIGH

Dolibarr < 24.0.0 Expense Report REST API Improper Authorization via Update Endpoint

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   L   N   L   N   N   H   N    7.1   .0042   34.3     —

AFFECTED
  Product   Versions     Fixed
  dolibarr  unspecified  —

TIMELINE
  Aug 6   Reserved by VulnCheck
  Aug 24  EXPLOIT PUBLISHED — CVE-2026-71509 (dolibarr). Public exploit reference added.
  Aug 24  Published (CNA: VulnCheck)
  Aug 26  EXPLOIT PUBLISHED — CVE-2026-71509 (dolibarr). Public exploit reference added.
  Aug 29  EXPLOIT PUBLISHED — CVE-2026-71509 (dolibarr). Public exploit reference added.
  Oct 1   EXPLOIT PUBLISHED — CVE-2026-71509 (dolibarr). Public exploit reference added.

CWE-862 · CNA: VulnCheck · CVSS v4.0 · 4 references · NVD status: Deferred

Description

Dolibarr before 24.0.0 contains an improper authorization vulnerability in the expense report REST API update endpoint that allows authenticated attackers with expense-creation rights to bypass the approval workflow by directly setting approval status and approver identity fields. Attackers can manipulate workflow state fields through the REST API to advance expense reports to approved or closed status without possessing the dedicated approval right, while also creating forensic inconsistencies in audit records due to missing approval timestamps.

Lifecycle

Complete event history — 6 events, chronological
Date	Event	Detail
August 6, 2026	Reserved	Reserved by VulnCheck
August 24, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-71509 (dolibarr). Public exploit reference added.
August 24, 2026	Published	Published (CNA: VulnCheck)
August 26, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-71509 (dolibarr). Public exploit reference added.
August 29, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-71509 (dolibarr). Public exploit reference added.
October 1, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-71509 (dolibarr). Public exploit reference added.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Dolibarr	dolibarr	—	—	—

Weaknesses

CWE-862

References (4)

https://codeant.ai/security-research/cve-2026-71509-dolibarr-mass-assignment-lets-users-self-approve-expenses [technical-description, exploit]
https://github.com/Dolibarr/dolibarr/commit/9c4eb945321f823955879600e9dc58a44d249e44 [patch]
https://github.com/Dolibarr/dolibarr/releases/tag/24.0.0 [release-notes]
https://www.vulncheck.com/advisories/dolibarr-expense-report-rest-api-improper-authorization-via-update-endpoint [third-party-advisory]

Authoritative record: CVE-2026-71509 at cve.org

Vendors: dolibarr

Weaknesses: CWE-862

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-71509 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Saturday, October 3, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.