CVE-2026-67693
Quick assessment
Affected
n/a n/a
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.
GnuTLS 3.8.13 版本存在一个漏洞，允许攻击者通过未能拒绝包含相互矛盾的密钥用法（Key Usage, KU）和扩展密钥用法（Extended Key Usage, EKU）组合的末端实体 X.509 证书，从而获取敏感信息。
Possible ATT&CK Techniques 1 AI
T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2026-67693
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue in gnutls v.3.8.13 allows an attacker to obtain sensitive information via failing to reject end-entity X.509 certificates that contain a contradictory combination of Key Usage (KU) and Extended Key Usage (EKU)
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2026-67693
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-67693 (3)
Same Patch Batch · n/a · 2026-10-08 · 9 CVEs total
| CVE-2026-95125 | libming 0.4.8堆溢出漏洞致拒绝服务 | |
| CVE-2026-95208 | wolfSSL v5.9.1/2名称约束处理拒绝服务漏洞 | |
| CVE-2026-88647 | GnuTLS v3.8.13主机名验证绕过漏洞 | |
| CVE-2026-95184 | gnutls v3.8.13证书验证不当导致DoS | |
| CVE-2026-95210 | GnuTLS 3.8.13 证书校验不当漏洞 | |
| CVE-2026-95209 | GnuTLS 3.8.13 拒绝合法 CA 证书导致 DoS | |
| CVE-2026-88648 | GnuTLS v3.8.13不完整X.509实现漏洞 | |
| CVE-2026-95116 | libming 0.4.8 读取SWF文件拒绝服务漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-67693
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