CVE-2026-29203

State: Published
Severity: 5.3 Medium
Published: May 8, 2026
Updated: May 15, 2026
Reserved: Mar 4, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	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	hackerone
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-61 UNIX Symbolic Link (Symlink) Following

Affected Products

Product	Versions
cPanelWebPros	11.136.0.0 to before 11.136.0.9Affected 11.134.0.0 to before 11.134.0.25Affected 11.132.0.0 to before 11.132.0.31Affected 11.130.0.0 to before 11.130.0.22Affected 11.126.0.0 to before 11.126.0.58Affected 11.124.0.0 to before 11.124.0.37Affected 11.118.0.0 to before 11.118.0.66Affected 11.110.0.0 to before 11.110.0.117Affected 11.102.0.0 to before 11.102.0.41Affected 11.94.0.0 to before 11.94.0.30Affected 11.86.0.0 to before 11.86.0.43Affected
cPanel (CloudLinux 6, CentOS 6)WebPros	11.110.0.0 to before 11.110.0.116Affected
WP SquaredWebPros	11.136.1.0 to before 11.136.1.10Affected

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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