AIKIDO-2026-875667
vertx-grpc-server is vulnerable to Denial of Service (DoS)
75
CVE Score
High
Denial of Service (DoS)
TL;DR
vertx-grpc-server applies the configured message maximum to the compressed bytes on the wire. A compressed message can expand past that maximum while it is inflated and exhaust the process heap. The fix also limits the size after decompression.
How do I fix this?
Upgrade the io.vertx:vertx-grpc-server library to the patch version.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and the server accepts compressed gRPC messages.
Package
Versions
4.0.0 - 4.5.34
Fixed in 4.5.355.0.0 - 5.1.8
Fixed in 5.1.105.2.0 - 5.2.0
Fixed in 5.2.1Background info
vertx-grpc-server is vulnerable to Denial of Service (DoS) in versions 4.0.0 - 4.5.34, 5.0.0 - 5.1.8 and 5.2.0 - 5.2.0.
Links
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