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, causing duplicate-page loops and preventing traversal of later dataset rows. This disrupts device-management workflows by causing repeated processing and making some data unreachable. The vulnerability has a CVSS 4.0 base score of 5.3 (medium severity). The affected product is a cloud service, and the vendor manages remediation.
Potential Impact
Exploitation allows authenticated attackers with read access to devices to cause infinite pagination loops that prevent access to later data rows and cause repeated processing in device-management workflows. This can disrupt normal operations relying on device data traversal but does not escalate privileges or cause direct data leakage according to the available information.
Mitigation Recommendations
Since this is a cloud-hosted service, the vendor manages remediation server-side. A patch is available for the underlying software (Cap-go 12.128.12 and later). Users should verify with the vendor advisory that the service has been updated and no further action is required on their part.
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, causing duplicate-page loops and preventing traversal of later dataset rows. This disrupts device-management workflows by causing repeated processing and making some data unreachable. The vulnerability has a CVSS 4.0 base score of 5.3 (medium severity). The affected product is a cloud service, and the vendor manages remediation.
Potential Impact
Exploitation allows authenticated attackers with read access to devices to cause infinite pagination loops that prevent access to later data rows and cause repeated processing in device-management workflows. This can disrupt normal operations relying on device data traversal but does not escalate privileges or cause direct data leakage according to the available information.
Mitigation Recommendations
Since this is a cloud-hosted service, the vendor manages remediation server-side. A patch is available for the underlying software (Cap-go 12.128.12 and later). Users should verify with the vendor advisory that the service has been updated and no further action is required on their part.
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: 06/20/2026, 16:09:14 UTC
Last enriched: 06/27/2026, 21:46:11 UTC
Last updated: 08/04/2026, 12:46:13 UTC
Views: 79
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