AIKIDO-2026-683765
vertx-web-openapi-router is vulnerable to Denial of Service (DoS)
75
CVE Score
High
Denial of Service (DoS)
TL;DR
uniqueItems validation in vertx-json-schema compares every array element with every other element and does not stop at a size limit. An unauthenticated caller can send a moderately large array and hold a CPU core for a long time. The fix bounds that comparison so a large array cannot dominate CPU time.
How do I fix this?
Upgrade the io.vertx:vertx-web-openapi-router 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 application validates untrusted JSON with uniqueItems.
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-web-openapi-router 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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