What’s Vulnerable › Vulnerabilities

CVE-2026-58047

• Severity: medium (CVSS 5.6 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-31 · updated 2026-09-03
• Weakness: CWE-444

Description

HTTP Smuggling in cPanel allows potential leak of credentials.

Affected products

• WebPros cPanel: before 11.110.0.137; before 11.126.0.78; before 11.134.0.48; before 11.136.0.32; before 11.137.9999.99; before 11.118.0.71 — fixed in 11.110.0.137, 11.118.0.71, 11.126.0.78, 11.134.0.48, 11.136.0.32, 11.137.9999.99
• WebPros WP Squared: before 11.138.1.6 — fixed in 11.138.1.6

How to fix

Upgrade to a fixed version: WebPros cPanel 11.110.0.137, 11.118.0.71, 11.126.0.78, 11.134.0.48; WebPros WP Squared 11.138.1.6. Check the vendor advisory for mitigations.

References

• https://docs.cpanel.net/changelogs/138-change-log
• https://support.cpanel.net/hc/en-us/articles/42285024734743-Security-CVE-2026-58047-HTTP-Request-Smuggling

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