Nissan

Summary

A data breach involving a self-managed GitLab instance used by Red Hat's Consulting team led to unauthorized access by a hacking group known as Crimson Collective, who claimed to have stolen 570 GB of compressed data from private repositories, including customer infrastructure details. The incident exposed personal information of approximately 21,000 customers of Nissan Fukuoka Sales, comprising names, addresses, phone numbers, partial email addresses, and sales-related details, though no credit card data was compromised. Red Hat Consulting's affected GitLab instance also contained example code snippets, internal communications, and project specifications. The company reported the matter to authorities and began notifying affected individuals, while declining to confirm whether the stolen data was subsequently reused by threat actors.

Motives

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TTPs

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Description

In late September 2025, an unauthorized party gained access to a self-managed GitLab instance operated by the Red Hat Consulting team, initiating a data breach that subsequently extended to organizations whose information was stored within that environment. The compromised GitLab instance contained example code snippets, internal communications, and project specifications. Following the intrusion, a hacking group identifying itself as "Crimson Collective" claimed responsibility and attempted to extort Red Hat. The group alleged that it had stolen approximately 570 GB of compressed data drawn from 28,000 private repositories. Among the materials reportedly taken, Crimson Collective asserted that the data included information capable of providing access to Red Hat customers' infrastructure, suggesting a potential downstream impact on organizations that relied on Red Hat's consulting services.

The full scope of the breach became apparent only as downstream organizations began to confirm their own involvement. One of the disclosed affected parties was Nissan, the Japanese automotive manufacturer, which acknowledged that data tied to its operations had been exposed through the Red Hat Consulting GitLab compromise. Specifically, Nissan reported that information belonging to 21,000 customers of Nissan Fukuoka Sales had been present in the stolen materials. The personal data involved included customer names, addresses, telephone numbers, partial email addresses, and sales-related details. Nissan emphasized that no credit card information or complete financial credentials were among the compromised records, narrowing the immediate identity-theft risk associated with the exposed data.

Nissan's confirmation of impact came publicly on December 27, 2025, roughly three months after the underlying unauthorized access occurred at Red Hat's GitLab instance. The delay between the September breach and Nissan's public disclosure reflects the time required to identify which customer data was housed in the affected repositories, validate the specific contents, and coordinate internal and external communications. Once the presence of Nissan Fukuoka Sales customer information in the stolen data was confirmed, the company engaged its incident response procedures and reported the matter to relevant authorities. In parallel, Nissan began the process of notifying the 21,000 affected customers individually so that they could be informed of the specific categories of personal information exposed.

In response to the incident, Nissan stated that it could not independently confirm external reports suggesting that the stolen data might have been reused by threat actors for further malicious activity. This uncertainty underscores the ongoing risk assessment phase following breaches of this nature, where downstream organizations must evaluate whether exposed information could facilitate phishing, social engineering, or follow-on intrusions. Nissan's public posture centered on transparency regarding the categories of data compromised while acknowledging the limits of its visibility into how the stolen records might be handled by the attackers. The company did not indicate any operational disruption to its manufacturing, vehicle sales systems, or dealership network, with the impact described as confined to the personal information of a defined customer subset tied to one regional sales operation.

The broader context of the incident highlights the supply-chain dimension of the breach, as the initial compromise was not of Nissan's own infrastructure but of a vendor's consulting environment. Red Hat's GitLab instance, used in the course of providing consulting services, inadvertently housed customer-related materials that extended beyond Red Hat's own corporate data. The Crimson Collective's claims of accessing data tied to Red Hat customers' infrastructure illustrate how a single intrusion at a service provider can cascade into exposure across multiple client organizations. Nissan's case represents one confirmed instance among what may be additional undisclosed affected customers whose information was contained in the same repository set.

As the situation stood at the time of Nissan's disclosure, the company had notified authorities, was conducting direct notification of affected individuals, and had publicly identified the categories of personal data involved. The response actions described reflect standard procedures for addressing customer information exposure: regulatory reporting, individual notification, and public acknowledgment of the incident's scope. The breach at Red Hat's self-managed GitLab instance in late September 2025, the subsequent extortion attempt by Crimson Collective, and the downstream confirmation by Nissan on December 27, 2025, together form the documented sequence of events tied to this incident.

Sources

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