AIKIDO-2026-610910
vertx-pg-client is vulnerable to Denial of Service (DoS)
59
CVE Score
Medium
Denial of Service (DoS)
TL;DR
DataTypeCodec.binaryDecodeArray in vertx-pg-client allocates a Java array from a 32-bit dimension count in a server DataRow, with no upper bound. A PostgreSQL server, or a host on an unencrypted path, can set that count high enough to exhaust the heap. The fix caps array dimensions and element lengths before allocation.
How do I fix this?
Upgrade the io.vertx:vertx-pg-client 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 client connects to a PostgreSQL server you do not trust.
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-pg-client 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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