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Checkmarx Confirms GitHub Repository Data Leaked and Published on Dark Web

ID: dc872f79-e506-5fe9-909c-0bb6d6680e8c

STIX ID: report--dc872f79-e506-5fe9-909c-0bb6d6680e8c

Feed Name: Cyber Press

Threat Score
65/100

Date Published: 2026-04-28

Date Updated: 2026-04-28

Author: AnuPriya

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**Executive summary:** Checkmarx confirmed that data from an internal GitHub repository was leaked on the dark web after threat actors leveraged a March 23, 2026 supply-chain compromise; the company has isolated the repository, engaged a third-party forensic firm, and is analyzing leaked artifacts while stating no confirmed customer impact so far and promising a technical update within 24 hours.

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