What’s Vulnerable › Vulnerabilities

CVE-2022-3320: Bypassing Cloudflare Zero Trust policies using warp-cli set-custom-endpoint command

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-28 · updated 2026-06-17
• Weakness: CWE-862

Description

It was possible to bypass policies configured for Zero Trust Secure Web Gateway by using warp-cli 'set-custom-endpoint' subcommand. Using this command with an unreachable endpoint caused the WARP Client to disconnect and allowed bypassing administrative restrictions on a Zero Trust enrolled endpoint.

Affected products

• Cloudflare WARP: before 2022.8.857.0; before 2022.8.861.0; before 2022.8.936 — fixed in 2022.8.857.0, 2022.8.861.0, 2022.8.936

How to fix

Upgrade to a fixed version: Cloudflare WARP 2022.8.857.0, 2022.8.861.0, 2022.8.936. Check the vendor advisory for mitigations.

References

• https://github.com/cloudflare/advisories/security/advisories/GHSA-3868-hwjx-r5xf
• https://github.com/cloudflare/advisories/security/advisories/GHSA-3868-hwjx-r5xf

Get alerted when CVE-2022-3320 or the next vulnerability affects your stack