CVE Index中文
L4 · Septic Tank BlewChainstack · Data breach · Credentialschainstack-account-data

Chainstack reports customer account database access; rotate passwords and node credentials

Chainstack confirms an intruder accessed its customer account database and systems holding node credentials. Names, member emails and password hashes may be exposed. Node credential reads are unproven, but the vendor requests rotation and platform API key regeneration.

Disclosed
Nov 3, 2026
Public disclosure date
Severity
Septic Tank Blew
No CVE: a breach, not a bug
Splash zone
Chainstack customer accounts and node credentials held in the accessed systems; affected customer count is undisclosed.
Chainstack · Data breach · Credentials
In the wild
Yes
Chainstack confirms unauthorized access to development and production infrastructure.

What happened

Chainstack’s November 3 report says an attacker entered through an unnamed third-party component and accessed a customer account database. Organization names, account holder names, organization-member emails and password hashes may have been exposed. The company also treats node credentials as exposed because their hosting systems were accessible, although it found no evidence the credentials were read. Notifying all customers does not establish that every customer’s records were copied. No victim count or confirmed wallet loss is provided.

The vendor says customer nodes, the console and the API were not modified, and customer-facing services kept operating. It says full payment card numbers and security codes were not exposed because it does not store them. These are vendor findings, not an independent forensic verification. The report links the incident to a broader AI-powered campaign but does not name the component, actor or an exploit identifier; a connection to another named incident is unverified.

L4 reflects a confirmed intrusion into production infrastructure and access to customer account data, not a proven mass-victim count. There is no customer software patch. Passwords, node credentials and platform API keys are separate remediation tasks. Generating new node credentials alone leaves the old ones active until rotation is completed.

Crime-scene timeline

  1. Oct 26, 2026

    Attacker enters development environment

    Vendor investigation dates the first access to this day.

  2. Oct 29, 2026

    Attacker reaches parts of production

    Chainstack does not identify the third-party component used for entry.

  3. Oct 31, 2026

    Chainstack detects the intrusion and cuts access

    Customer-facing services continued operating, according to the vendor.

  4. Nov 2, 2026

    Vendor finalizes investigation and closes incident

    Closure does not complete customer-side credential rotation.

  5. Nov 3, 2026

    Public report asks customers to replace credentials

    Account database access is confirmed; node credential reads are not established.

Who said what

We list each claim and who made it. Primary sources (the vendor, the researcher, the registry) are marked. Where reports disagree, we grade by the worst credible case.