Three weeks after the jewel theft at the Louvre, the museum has been criticised for neglecting security.
The Court of Auditors report found that for years managers preferred to invest in new artworks and exhibitions rather than basic upkeep and protection.
"Let no-one be mistaken: the theft of the crown jewels is a resounding wake-up call," said the audit court's president, Pierre Moscovici.
On Sunday 19 October, thieves broke into the Louvre's Apollo Gallery. The thieves stole jewels worth €88m that once belonged to 19th-Century queens and empresses.
Basing its findings on the years 2018 to 2024, the report says the Louvre "favoured operations that were visible and attractive at the expense of maintenance and renovation of technical installations, notably in the fields of safety and security".
In the period studied, the museum spent €105.4m on buying new artworks and €63.5m on exhibition spaces. But at the same time it spent only €26.7m on maintenance works and €59.5m on restoration of the palace building.