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CVE-2026-68762

Quick assessment

Affected
JetBrains Ktor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

JetBrains Ktor是捷克JetBrains公司开源的一款异步Web服务框架。 JetBrains Ktor 3.4.1之前版本存在资源管理错误漏洞，该漏洞源于WebSocket解压缩问题，可能导致拒绝服务攻击。

CVSS 5.9 · Medium EPSS 0.29% · P21

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood

Affected Version Matrix 1

VendorProduct Version RangeStatus
JetBrains Ktor < 3.4.1 affected
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I. Basic Information for CVE-2026-68762

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In JetBrains Ktor before 3.4.1 potential DoS attack via WebSocket decompression was possible
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
JetBrains Ktor 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JetBrains Ktor是捷克JetBrains公司开源的一款异步Web服务框架。 JetBrains Ktor 3.4.1之前版本存在资源管理错误漏洞，该漏洞源于WebSocket解压缩问题，可能导致拒绝服务攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
JetBrains Ktor 0 ~ 3.4.1 -

II. Public POCs for CVE-2026-68762

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III. Intelligence Information for CVE-2026-68762

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Vendor Pages for CVE-2026-68762 (1)

Same Patch Batch · JetBrains · 2026-08-17 · 18 CVEs total

CVE-2026-75045 9.1 CRITICAL JetBrains YouTrack 授权问题漏洞
CVE-2026-75060 8.4 HIGH JetBrains PyCharm 授权问题漏洞
CVE-2026-75048 8.2 HIGH JetBrains YouTrack 跨站脚本漏洞
CVE-2026-75051 8.1 HIGH JetBrains YouTrack 授权问题漏洞
CVE-2026-75044 8.1 HIGH JetBrains YouTrack 授权问题漏洞
CVE-2026-75056 7.8 HIGH JetBrains IntelliJ IDEA 命令注入漏洞
CVE-2026-75050 7.1 HIGH JetBrains YouTrack 资源管理错误漏洞
CVE-2026-75049 6.5 MEDIUM JetBrains YouTrack 授权问题漏洞
CVE-2026-75047 6.5 MEDIUM JetBrains YouTrack 资源管理错误漏洞
CVE-2026-75054 6.3 MEDIUM JetBrains IntelliJ IDEA 服务端请求伪造漏洞
CVE-2026-75057 6.2 MEDIUM JetBrains IntelliJ IDEA 日志信息泄露漏洞
CVE-2026-75058 5.5 MEDIUM JetBrains IntelliJ IDEA 输入验证错误漏洞
CVE-2026-75055 5.5 MEDIUM JetBrains IntelliJ IDEA 输入验证错误漏洞
CVE-2026-75053 5.4 MEDIUM JetBrains IntelliJ IDEA 服务端请求伪造漏洞
CVE-2026-75059 4.4 MEDIUM JetBrains PyCharm 跨站脚本漏洞
CVE-2026-75046 4.3 MEDIUM JetBrains YouTrack 授权问题漏洞
CVE-2026-75052 3.6 LOW JetBrains IntelliJ IDEA 命令注入漏洞

IV. Related Vulnerabilities

Same product: Ktor
Same vendor: JetBrains
Same weakness: CWE-835

V. Comments for CVE-2026-68762

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