CVE-2026-42055: NGINX ngx_http_proxy_v2_module and ngx_http_grpc_module vulnerability

Overview

Severity

High (CVSS 8.1)

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-07-01

Last Updated

2026-07-09

EPSS Score

4.02% (percentile: 89.7%)

Detection & Weaponization (1 sources)

Maturity: Exploit

• GitHub PoC: 1 repositories

Affected Products (2)

Other

• 21497-17084
• 21527-17084

Revision History

• 2026-07-01: Information published.
• 2026-07-01: Information published.
• 2026-07-09: Information published.