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CVE-2026-77165

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.

文件所有者无法解除由其他用户设置的 TYPE_TOKEN 锁，导致文件被永久锁定，且在数据库之外没有恢复途径。

EPSS 0.25% · P17

Affected Version Matrix 1

VendorProduct Version RangeStatus
Nextcloud Server 32.0.0≤ 34.0.0 affected
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I. Basic Information for CVE-2026-77165

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
File owners were unable to unlock TYPE_TOKEN locks placed by other users, leaving files permanently locked with no recovery path outside of the database.
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

Vendor Product Affected Versions CPE Subscribe
Nextcloud Server 32.0.0 ~ 34.0.0 -

II. Public POCs for CVE-2026-77165

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III. Intelligence Information for CVE-2026-77165

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Other References for CVE-2026-77165 (1)

IV. Related Vulnerabilities

Same product: Server
Same vendor: Nextcloud
Same weakness: CWE-284

V. Comments for CVE-2026-77165

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