CVE-2026-82986
Quick assessment
Affected
Nextcloud Tables
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.
组内的用户可以绕过管理员为链接共享设置的组限制，即使他们本无此权限，也能创建表的共享链接。
Possible ATT&CK Techniques 1 AI
T1548.003 · Sudo and Sudo Caching
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I. Basic Information for CVE-2026-82986
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The user in a group can bypass the group restriction set by an administrator on link sharing, creating share links for a table even though they shouldn't have that permission.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-82986
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
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Other References for CVE-2026-82986 (1)
Same Patch Batch · Nextcloud · 2026-10-27 · 9 CVEs total
| CVE-2026-87897 | Whiteboard SSRF 漏洞：泄露 JWT 并获读写权限 | |
| CVE-2026-77173 | LibreOffice 文件命名含#致敏感信息未标记 | |
| CVE-2026-77172 | 应用密码绕过敏感端点密码确认漏洞 | |
| CVE-2026-77167 | Nextcloud 未认证 federated share 端点拒绝服务漏洞 | |
| CVE-2026-77171 | 公共共享集体链接允许创建页面漏洞 | |
| CVE-2026-82983 | Tables 应用分享端点未验证权限导致信息泄露 | |
| CVE-2026-82984 | 某软件资源 API 存在越权枚举漏洞 | |
| CVE-2026-67400 | WOPI 配置信息泄露：缺失 Token 类型检查 |
IV. Related Vulnerabilities
Same product: Tables