AIKIDO-2026-371771
springdoc-openapi-starter-common is vulnerable to Uncontrolled Resource Consumption
75
High Risk
This Affects:
springdoc-openapi-starter-commonTL;DR
The OpenAPIService caches generated OpenAPI documents in a map keyed by request locale, and the locale derives from the client supplied Accept-Language header. Requesting /v3/api-docs with many distinct language tags fills the cache with fully materialized documents without any bound, and a related append-only growth affects @ControllerAdvice handling. This exhausts the heap and triggers an OutOfMemoryError. The patch bounds the cache with an access-ordered LRU limited by springdoc.cache.max-entries.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and your /v3/api-docs endpoint is reachable by clients that can vary the Accept-Language header.
Background info
springdoc-openapi-starter-common is vulnerable to Uncontrolled Resource Consumption in versions 2.0.0 - 2.9.0 and 3.0.0 - 3.1.0.
How to fix this
Upgrade the springdoc-openapi-starter-common library to the patch version.
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