CVE-2026-5190— AWS C Event Stream Streaming Decoder Stack Buffer Overflow
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I. Basic Information for CVE-2026-5190
Vulnerability Information
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Vulnerability Title
AWS C Event Stream Streaming Decoder Stack Buffer Overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
Out-of-bounds write in the streaming decoder component in aws-c-event-stream before 0.6.0 might allow a third party operating a server to cause memory corruption leading to arbitrary code execution on a client application that processes crafted event-stream messages. To remediate this issue, users should upgrade to version 0.6.0 or later.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
aws-c-event-stream 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
aws-c-event-stream是Amazon Web Services - Labs开源的一个事件流协议C语言实现库。 aws-c-event-stream 0.6.0之前版本存在安全漏洞，该漏洞源于流解码器组件存在越界写入，可能导致处理特制事件流消息时内存损坏并执行任意代码。
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 |
|---|---|---|---|---|
| AWS | aws-c-event-stream | - | - |
II. Public POCs for CVE-2026-5190
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
Qwen3.6-35B-A3B · 10918 chars
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III. Intelligence Information for CVE-2026-5190
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- 2026-011-AWSvendor-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-5190
IV. Related Vulnerabilities
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V. Comments for CVE-2026-5190
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