Vulnerability · Published Jun 20, 2026 · Assigned by VulnCheck

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

Medium 4.3

In plain English

A medium-severity security flaw in capgo from Cap-go. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 79.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
Cap-go	capgo	0 – before 12.128.12

Weakness: CWE-670 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References

GHSA Advisory GHSA-8p6w-x7jg-v4xq vendor-advisory
VulnCheck Advisory: Cap-go - Broken Cursor Pagination in /private/devices Endpoint third-party-advisory