Allocation of Resources Without Limits or Throttling in Quarkus - CVE-2026-16308
Published: August 28, 2026
Vulnerability identifier: #VU146047
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-16308
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in MultipartParser when handling multipart/form-data requests. A remote attacker can send a specially crafted multipart/form-data request with an arbitrarily large MIME part-header section to cause a denial of service.
The issue affects endpoints that accept multipart/form-data, and a single request can exhaust the JVM heap and crash the application with OutOfMemoryError before any application code runs.
Affected software
Quarkus
How to mitigate CVE-2026-16308
Install security update from vendor's website.
Quarkus - addressed in versions 3.27.5.1, 3.33.3.1, 3.38.1