CVE-2026-68762
Received Received - Intake

Denial of Service via WebSocket Decompression in JetBrains Ktor

Publication date: 2026-08-17

Last updated on: 2026-08-17

Assigner: JetBrains s.r.o.

Description
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible

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Meta Information

Published
2026-08-17
Last Modified
2026-08-17
Generated
2026-08-17
AI Q&A
2026-08-17
EPSS Evaluated
N/A
NVD
CVE-2026-68762
EUVD
EUVD-2026-60242

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
jetbrains ktor to 3.4.1 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-835 The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

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Executive Summary

This vulnerability is a potential Denial of Service (DoS) attack in JetBrains Ktor versions before 3.4.1. It occurs due to a flaw in WebSocket decompression handling, which could allow an attacker to cause excessive resource consumption and crash the server.

Impact Analysis

If exploited, this vulnerability could lead to service disruption by consuming server resources, causing downtime or degraded performance for applications using affected Ktor versions.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or other standards as it is a DoS attack via WebSocket decompression in JetBrains Ktor. Compliance impact depends on system usage and mitigation rather than the vulnerability itself.

Mitigation Strategies

Update JetBrains Ktor to version 3.4.1 or later to address the DoS vulnerability via WebSocket decompression.

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