CVE Catalog

CVE-2026-108748

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.30%

21th percentile - higher than 21% of all known CVEs

Summary

Quarkus LangChain4j 1.9.0 through 1.14.1 contains a missing release of memory vulnerability in the chat-scopes WebSocket /_chat/routes endpoint that allows unauthenticated remote clients to exhaust server memory. Attackers can send repeated CONNECT frames reusing one chatId, leaving orphaned scopes in activeScopes until the JVM exits and degrading availability.

Risk Assessment

The risk is the possibility of remotely exhausting server memory by unauthenticated attackers, leading to denial of service and reduced availability.

Recommendation

Update Quarkus LangChain4j to a patched version. Additionally, enforce connection limits and release resources after session termination.

Related vulnerabilities

Original NVD description (English source)

Quarkus LangChain4j 1.9.0 through 1.14.1 contains a missing release of memory vulnerability in the chat-scopes WebSocket /_chat/routes endpoint that allows unauthenticated remote clients to exhaust server memory. Attackers can send repeated CONNECT frames reusing one chatId, leaving orphaned scopes in activeScopes until the JVM exits and degrading availability.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS