CVE-2026-7776— Boundary Workers Vulnerable to Denial of Service During TLS Handshake
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I. Basic Information for CVE-2026-7776
Vulnerability Information
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Vulnerability Title
Boundary Workers Vulnerable to Denial of Service During TLS Handshake
Source: NVD (National Vulnerability Database)
Vulnerability Description
Boundary Community Edition and Boundary Enterprise (“Boundary”) workers are vulnerable to a denial-of-service condition during node enrollment TLS handshakes. An attacker with network access to the worker authentication listener may open a connection and delay or withhold the client certificate during the TLS handshake, causing worker connection handling to block. This may prevent legitimate worker connections from being accepted or routed. This vulnerability, CVE-2026-7776, is fixed in Boundary 0.21.3, 0.20.3, 0.19.5.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
Source: NVD (National Vulnerability Database)
Vulnerability Title
HashiCorp Boundary 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HashiCorp Boundary是美国HashiCorp公司的一种开源解决方案。可自动实现基于身份的安全用户跨环境访问主机和服务。 HashiCorp Boundary 0.21.3之前版本、0.20.3之前版本和0.19.5之前版本存在安全漏洞，该漏洞源于节点注册TLS握手过程中可能导致拒绝服务。
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 |
|---|---|---|---|---|
| HashiCorp | Boundary | 0.9.0 ~ 0.21.3 | - | |
| HashiCorp | Boundary Enterprise | 0.9.0 ~ 0.21.3 | - |
II. Public POCs for CVE-2026-7776
| # | POC Description | Source Link | Shenlong Link |
|---|
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