CampaignHuman reviewed 2026-08-26 · CircleCI disclosure

CircleCI Breach

Stolen access tokens leaked secrets from CI pipelines

Definition

Stolen access tokens leaked secrets from CI pipelines

Why It Matters / Impact

Stolen access tokens leaked secrets from CI pipelines

Current Status

  • Review status: published
  • Last updated: 2026-08-26
  • Evidence: 2 source(s) · 0 CVE(s) linked
  • Confidence: 85%

Timeline

  1. 2023-01 — Breach disclosed
  2. 2023-01 — Rotate-secrets guidance

Sources

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  2. Evidence — assertions mapped to verifiable references.
  3. Timeline — events in chronological order.
  4. Related Entities — CVE, threat actor, campaign, malware links.
  5. Sources — NVD, CISA KEV, MITRE ATT&CK, vendor advisories.
  6. Notes — your own observations and working hypotheses.

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