CVE-2026-39825: ReverseProxy forwards queries with more than urlmaxqueryparams parameters in net/http/httputil

Overview

Severity

Medium (CVSS 5.3)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-10

Last Updated

2026-09-17

EPSS Score

0.39% (percentile: 33.0%)

Affected Products (3)

Other

• 21203-17084
• 21206-17084
• 21778-17084

Security Updates (1)

• Security Update

Revision History

• 2026-05-10: Information published.
• 2026-05-11: Information published.
• 2026-05-13: Information published.
• 2026-05-19: Information published.
• 2026-06-03: Information published.
• 2026-06-23: Information published.
• 2026-09-03: Information published.
• 2026-09-07: Information published.
• 2026-09-09: Information published.
• 2026-09-17: Information published.