CVE-2026-19204
EUVD-2026-7233507.09.2026, 11:17
A client may send a WebSocket frame with an unknown opcode and a very large declared payload length, causing Jetty to attempt a large memory allocation and potentially exhaust the JVM heap. This occurs when auto-fragmentation is enabled, as unknown opcodes bypass the normal maximum frame size handling and payload allocation occurs before the opcode is validated.Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| eclipse | jetty | 12.1.0 ≤ 𝑥 ≤ 12.1.11 | CNA |
| eclipse | jetty | 12.0.0 ≤ 𝑥 ≤ 12.0.37 | CNA |
| eclipse | jetty | 11.0.0 ≤ 𝑥 ≤ 11.0.31 | CNA |
| eclipse | jetty | 10.0.0 ≤ 𝑥 ≤ 10.0.31 | CNA |
Debian Releases
Ubuntu Releases