Cloudflare
Cloudflare Workerd: vulnerabilities and CVEs
Cloudflare Workerd has 2 published vulnerabilities, 1 of them in the last 12 months. 0 are rated critical and 0 are listed by CISA as actively exploited.
CVEs2
Last 12 months1
Critical0
Actively exploited0
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Latest vulnerabilities
| CVE | Severity | EPSS | Active exploitation | Published | Description |
|---|---|---|---|---|---|
| CVE-2026-56307 | Medium (5.3) | 0.37% | — | Jun 20, 2026 | 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… |
| CVE-2023-2512 | High (8.1) | 0.62% | — | May 12, 2023 | Prior to version v1.20230419.0, the FormData API implementation was subject to an integer overflow. If a FormData instance contained more than 2^31 elements, the forEach() method could end up reading from the wrong… |