CVE-2026-42011— GnuTLS 名称约束处理不当导致的安全绕过漏洞
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一、 漏洞 CVE-2026-42011 基础信息
漏洞信息
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Vulnerability Title
Gnutls: gnutls: security bypass due to incorrect name constraint handling
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities (CAs) only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate validation. This bypass could lead to the acceptance of invalid certificates, potentially enabling spoofing or man-in-the-middle attacks against affected systems.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
证书验证不恰当
来源: 美国国家漏洞数据库 NVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 | |
| Red Hat | Red Hat Hardened Images | - | cpe:/a:redhat:hummingbird:1 | |
| Red Hat | Red Hat OpenShift Container Platform 4 | - | cpe:/a:redhat:openshift:4 |
二、漏洞 CVE-2026-42011 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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- 2467437 – (CVE-2026-42011) CVE-2026-42011 gnutls: gnutls: Security bypass due to incorrect name constraint handlingissue-trackingx_refsource_REDHAT
- https://nvd.nist.gov/vuln/detail/CVE-2026-42011
IV. Related Vulnerabilities
V. Comments for CVE-2026-42011
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