技术分析
第四届"数信杯"数据安全大赛 · 数据安全个人赛（初赛）WriteUp
本文是10月16日比的数信杯数据安全大赛 数据安全个人赛的解题报告，比赛体量很大，主要包含了数据安全领域的WEB安全，AI安全 ，工控安全，量子安全，无人机安全，Reverse，Misc。
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按时间、分类、严重程度检索全部安全漏洞与安全信息。当前共收录 215 条记录。
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2026 年 10 月
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漏洞预警
一个从未"到达"的请求:CVE-2026-76169,Fastify 畸形 URL 绕过封装 404 处理器认证
漏洞编号 CVE-2026-76169,GitHub 安全通告编号 GHSA-p68q-wchp-6fh7。一句话描述:fastify 在 >= 4.0.0, < 5.12.2 版本中,内部 404 路由器处理畸形 URL 时,通过一个跨插件共享的 handler 指针,直接调用"最后注册"的封装 404 处理器——插件前缀被完全忽略,该处理器声明的 preHandler 等全部生命周期钩子也一并
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漏洞预警
CVE-2026-102268:PyJWT 非对称 PEM 检测绕过——变异公钥如何作为 HMAC 密钥通过验证
一句话:PyJWT ≤ 2.13.0 用一个严格结构正则来判断"这段字节是不是非对称公钥",而底层 cryptography 库的 PEM 加载器接受比它宽松得多的格式。两者接受范围的差集,使公开公钥可以被当作 HMAC 对称密钥使用——只要验证端的算法允许列表混用了 HMAC 与非对称算法,知道公钥的任何人就能伪造通过验证的令牌。
技术分析
2026年第二届黑灰产检测技能大赛线上预选赛 WP 全解
本赛题覆盖填充预言机、弱签名碰撞、二维码掩码修复与多类流量取证。证书题在单连接内用两种错误响应逐字节恢复 AES-CBC 明文；签名题针对字节和乘长度的校验构造碰撞复用 RSA 签名；取证题串联 IEC 104 未授权主站、IPv4 保留位信道与 WebSocket 掩码帧；Web 题以 Django 关系查询盲注恢复哈希后绕过路径限制进后台。全部结论附代码复现。
技术分析
2026中国工业互联网安全大赛全国线上预选赛 Writeup 下篇
本篇是2026中国工业互联网安全大赛全国线上预选赛 下午上的13道题目的全部题解。 pwn 两道都落在工控设备的执行层实现上。SBX1 是一台自定义字节码虚拟机，解释器把边界检查统一建立在与首部声明的 mem_size 字段上，而该字段只做了上限 clamp，从未与栈上数据区的真实长度 0x90 比对，导致脚本体可以用 STORE64 改写自己的返回地址，配合程序内现成的弹栈序列拼出 ROP
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漏洞预警
CVE-2026-102764：BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability
BeyondTrust Remote Support contains an authentication bypass by spoofing vulnerability that could allow a remote attacker to perform file operations on the appliance.
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漏洞预警
CVE-2025-61624：Fortinet Multiple Products Path Traversal Vulnerability
FortiOS, FortiPAM, FortiProxy, and FortiSwitchManager contain a path traversal vulnerability that may allow an authenticated attacker with admin profile and at least read-write permissions to write or delete arbitrary fi…
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漏洞预警
CVE-2026-21589：Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye) contain a files or…
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漏洞预警
CVE-2026-105134：Ahsay AhsayCBS Command Injection Vulnerability
Ahsay AhsayCBS contains a command injection vulnerability that could allow a remote attacker to execute operating system commands via manipulation of the random parameter in the Replication Receiver component’s /rps/api/…
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漏洞预警
CVE-2026-76519：Cisco Secure Email Gateway Relative Path Traversal Vulnerability
Cisco Secure Email Gateway contains a relative path traversal vulnerability that could allow an unauthenticated, remote attacker to write arbitrary files on the underlying operating system.
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漏洞预警
CVE-2026-105133：Ahsay AhsayCBS Improper Authentication Vulnerability
Ahsay AhsayCBS contains an improper authentication vulnerability that could allow a remote attacker to bypass authentication via manipulation of the random parameter in the API component’s checkSysPwd function. This vuln…
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漏洞预警
CVE-2026-0322：Palo Alto Networks PAN-OS Code Injection Vulnerability
Palo Alto Networks PAN-OS contains a code injection vulnerability that could allow an authenticated attacker with network access to execute arbitrary code with root privileges on the firewall.
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漏洞预警
CVE-2026-96951：Microsoft Windows Command Injection Vulnerability
Microsoft Windows Shell contains a command injection vulnerability that allows an unauthorized attacker to bypass a security feature over a network.
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漏洞预警
CVE-2026-104935：Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote unauthenticated attacker to execute arbitrary commands.