CVE-2026-68493
Quick assessment
Affected
Nextcloud Server
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.
After guessing a 62^15 complex unique identifier, a malicious logged in user was able to retrieve a list of memberships for a circle they are not a member of.
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I. Basic Information for CVE-2026-68493
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
After guessing a 62^15 complex unique identifier, a malicious logged in user was able to retrieve a list of memberships for a circle they are not a member of.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-68493
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Other References for CVE-2026-68493 (1)
Same Patch Batch · Nextcloud · 2026-09-18 · 7 CVEs total
| CVE-2026-77169 | Nextcloud团队文件夹应用权限绕过漏洞 | |
| CVE-2026-77170 | Deck配置API越权设置任意看板配置漏洞 | |
| CVE-2026-77164 | Nextcloud Circles盲SSRF漏洞 | |
| CVE-2026-82982 | CVE-2026-82982 | |
| CVE-2026-82980 | CVE-2026-82980 | |
| CVE-2026-82985 | CVE-2026-82985 |
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V. Comments for CVE-2026-68493
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