This content originally appeared on DEV Community and was authored by SHUBHENDU SHUBHAM
My Firebase Webapp almost got pwned by a bot. Then another bot saved it.
Running Firebase 9.22.1 in prod → hashtag#Snyk bot drops a PR → “Just another dependency update” I thought. WRONG.
Hidden 4 levels deep: SNYK-JS-GRPCGRPCJS-7242922 – a DoS vulnerability that could’ve nuked my entire app with crafted gRPC messages.
The bot found it. Fixed it. Explained it. All automated.
Last week, I got an unexpected visitor to my GitHub repository. Not a human contributor, but Snyk’s automated security bot, flagging a critical vulnerability in my Firebase project. What started as a routine dependency check turned into a fascinating case study of how modern security tools can catch threats that even experienced developers might miss.
The culprit? An uncontrolled resource consumption vulnerability lurking in the @grpc/grpc-js library, buried deep within Firebase’s dependency chain. With a severity score of 559 and the identifier SNYK-JS-GRPCGRPCJS-7242922, this wasn’t just another minor security hiccup—it was a legitimate denial of service risk sitting in production code.
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This content originally appeared on DEV Community and was authored by SHUBHENDU SHUBHAM