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I. Basic Information for CVE-2026-31814
Vulnerability Information

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Vulnerability Title
Yamux remote Panic via malformed WindowUpdate credit
Source: NVD (National Vulnerability Database)
Vulnerability Description
Yamux is a stream multiplexer over reliable, ordered connections such as TCP/IP. From 0.13.0 to before 0.13.9, a specially crafted WindowUpdate can cause arithmetic overflow in send-window accounting, which triggers a panic in the connection state machine. This is remotely reachable over a normal network connection and does not require authentication. This vulnerability is fixed in 0.13.9.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
整数溢出或超界折返
Source: NVD (National Vulnerability Database)
Vulnerability Title
Yamux 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Yamux是美国libp2p开源的一个多路复用器。 Yamux 0.13.0至0.13.9之前版本存在输入验证错误漏洞,该漏洞源于特制的WindowUpdate可导致发送窗口计数算术溢出,可能触发连接状态机崩溃。
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
VendorProductAffected VersionsCPESubscribe
libp2prust-yamux >= 0.13.0, < 0.13.9 -
II. Public POCs for CVE-2026-31814
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III. Intelligence Information for CVE-2026-31814
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IV. Related Vulnerabilities
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