Open-Source CI Runner Escape Enables Secret Theft
A container escape in a popular CI runner let untrusted build jobs access host-level secrets. Attackers used it to steal cloud credentials and signing keys.
## What happened The flaw allowed a crafted job to mount host paths and read secret material from runner storage. ## Why this matters beyond one victim Compromised CI systems can poison software artifacts distributed to customers and partners. ## Technical notes Strong isolation and ephemeral runners significantly reduced observed impact in mature environments. ## What happened The flaw allowed a crafted job to mount host paths and read secret material from runner storage. Why this matters: validate exposure and assign an owner if affected. A container escape in a popular CI runner let untrusted build jobs access host-level secrets.
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