What’s Vulnerable › Vulnerabilities

CVE-2026-56307: Cap-go - Broken Cursor Pagination in /private/devices Endpoint

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-20 · updated 2026-10-25
• Weakness: CWE-670

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.

Affected products

• Cap-go capgo: before 12.128.12 — fixed in 12.128.12

How to fix

Upgrade to a fixed version: Cap-go capgo 12.128.12. Check the vendor advisory for mitigations.

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-8p6w-x7jg-v4xq
• https://www.vulncheck.com/advisories/cap-go-broken-cursor-pagination-in-private-devices-endpoint
• https://github.com/Cap-go/capgo/security/advisories/GHSA-8p6w-x7jg-v4xq

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