CVE-2026-19204
- Source
- https://cve.org/CVERecord?id=CVE-2026-19204
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-19204.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-19204
- Aliases
-
- GHSA-85fq-fc5f-7j7g
- Downstream
CLEANSTART (1)
DEBIAN (1)
UBUNTU (1)
- Published
- 2026-09-07T10:19:24Z
- Modified
- 2026-10-16T02:34:31Z
- Severity
-
- 8.7 (High) CVSS_V4 - 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 CVSS Calculator
- Summary
- [none]
- Details
-
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.
- Database specific
{ "cna_assigner": "eclipse", "cwe_ids": [ "CWE-770", "CWE-789" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/19xxx/CVE-2026-19204.json", "unresolved_ranges": [ { "extracted_events": [ { "range": [ { "introduced": "11.0.0" }, { "last_affected": "11.0.31" }, { "introduced": "10.0.0" }, { "last_affected": "10.0.31" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" } ] } ] }- References
Affected packages
Git / github.com/jetty/jetty.project
Affected ranges
- Type
- GIT
- Repo
- https://github.com/jetty/jetty.project
- Events
-
IntroducedLast AffectedIntroducedLast Affected
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "12.1.0" }, { "last_affected": "12.1.11" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "12.0.0" }, { "last_affected": "12.0.37" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" } ] }