HIGHVulnerability
CVE-2026-81624
Undertow is a flexible performant web server used in JBoss EAP and WildFly. A flaw was found in how Undertow handles WebSocket connections. Specifically, certain configuration limits like message buffer sizes and session timeouts cannot be adjusted and default to being unlimited. This allows a remote attacker to send large amounts of data or maintain connections indefinitely, potentially crashing the server by exhausting its memory or other resources.
Properties
- severity
- HIGH
- score
- 7.5
- epss_score
- 0.00332
- cve_id
- CVE-2026-81624
- vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- published_at
- 2026-08-31T09:17:03.453
- last_modified
- 2026-09-01T21:03:04.987
- epss_percentile
- 0.25961
Related Entities (3)
ENRICHED_BY (1)
→[Source]FIRST EPSS
HAS_WEAKNESS (1)
→[Weakness]Allocation of Resources Without Limits or Throttling
DESCRIBED_BY (1)
→[Source]NVD
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