CVE-2026-56307: Always-Incorrect Control Flow Implementation in Cap-go capgo
Cap-go before 12.128.12 contains a broken cursor pagination vulnerability in the /private/devices endpoint on the Cloudflare/workerd path that allows authenticated attackers to cause duplicate-page loops and make later rows unreachable. Attackers with app.read_devices access can exploit non-advancing cursor filters to trigger infinite pagination loops, prevent dataset traversal, and cause repeated processing in device-management workflows.
AI Analysis
Technical Summary
Cap-go versions prior to 12.128.12 contain a broken cursor pagination vulnerability in the /private/devices endpoint on the Cloudflare/workerd path. Authenticated users with app.read_devices permission can exploit non-advancing cursor filters to trigger infinite pagination loops. This causes duplicate-page loops that prevent traversal of later dataset rows and result in repeated processing within device-management workflows. The vulnerability is present in the cloud service environment.
Potential Impact
Exploitation allows authenticated attackers with read access to devices to cause infinite pagination loops, which prevent access to later rows in the dataset and cause repeated processing in device-management workflows. This can disrupt normal device management operations but does not escalate privileges or cause direct data compromise according to the available data.
Mitigation Recommendations
Since this is a cloud-hosted service, the vendor manages remediation server-side. A patch is available for the vulnerability. Users should verify with the vendor advisory that their environment is updated to a fixed version (12.128.12 or later) or that the vendor has applied the fix. No additional user action is required if the vendor has already mitigated the issue.
CVE-2026-56307: Always-Incorrect Control Flow Implementation in Cap-go capgo
Description
Cap-go before 12.128.12 contains a broken cursor pagination vulnerability in the /private/devices endpoint on the Cloudflare/workerd path that allows authenticated attackers to cause duplicate-page loops and make later rows unreachable. Attackers with app.read_devices access can exploit non-advancing cursor filters to trigger infinite pagination loops, prevent dataset traversal, and cause repeated processing in device-management workflows.
CVSS v4.0
Score 5.3medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Cap-go versions prior to 12.128.12 contain a broken cursor pagination vulnerability in the /private/devices endpoint on the Cloudflare/workerd path. Authenticated users with app.read_devices permission can exploit non-advancing cursor filters to trigger infinite pagination loops. This causes duplicate-page loops that prevent traversal of later dataset rows and result in repeated processing within device-management workflows. The vulnerability is present in the cloud service environment.
Potential Impact
Exploitation allows authenticated attackers with read access to devices to cause infinite pagination loops, which prevent access to later rows in the dataset and cause repeated processing in device-management workflows. This can disrupt normal device management operations but does not escalate privileges or cause direct data compromise according to the available data.
Mitigation Recommendations
Since this is a cloud-hosted service, the vendor manages remediation server-side. A patch is available for the vulnerability. Users should verify with the vendor advisory that their environment is updated to a fixed version (12.128.12 or later) or that the vendor has applied the fix. No additional user action is required if the vendor has already mitigated the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-06-20T12:53:19.893Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
Threat ID: 6a36bb2a49568db4e2fc6970
Added to database: 6/20/2026, 4:09:14 PM
Last enriched: 6/20/2026, 4:24:07 PM
Last updated: 6/20/2026, 6:32:48 PM
Views: 11
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