Every public data breach

Disclosed this week44On record26,355

44 disclosed this week · 26,355 on record

Mistral AI

Disclosed May 14, 2026Confirmed

Official notice

TeamPCP offers Mistral AI code repos for sale after TanStack compromise

TeamPCP advertised about 450 Mistral AI code repositories, including training and inference code, after a developer device was hit by the TanStack supply-chain attack. Mistral confirmed the incident and SDK package contamination but said hosted services and user data were not compromised.

What is known

People affectedNot stated in the sources we have
DisclosedMay 14, 2026
AttackSupply chain
Data exposedSource code
SectorAI · FR
StatusConfirmed
Part ofTanstack (2026)

Sources

Official noticedocs.mistral.ai
Mistral AI security advisories
Newsbleepingcomputer.com
TeamPCP hackers advertise Mistral AI code repos for sale

Notices filed

TotalMay 14
ResearchCount not stated

Same campaign

GitHubSupply chain exposed source code, credentials and tokens and API keys.Supply chainTechUSMay 20Grafana LabsSupply chain exposed source code.Supply chainTechUSUnverifiedMay 16OpenAITanStack npm supply chain attack reached two OpenAI employee devices and internal reposSupply chainAIUSUnverifiedMay 14

Other breaches at Mistral AI

Early-access customer's employee leaked Mistral 'miqu' model weightsInsider exposed training data.InsiderAIFRUnverifiedJan 31, 2024
History of this record
Added2026-09-25
First recordedby seedSource

First seen 2026-09-25 (Research), confirmed by Research. Record counts are as reported. Not legal advice.

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