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

High severity · published May 8, 2026

CVE-2026-29203

A chmod call in the cPanel Nova plugin's Cpanel::Nova::Connector follows symlinks, allowing setting root permissions on arbitrary system files or directories

8.8

CVSS

0.5%

EPSS

On KEV

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.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.5% · higher than 42% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

WP Squared · WebPros

11.136.1.0 before 11.136.1.10 · source: vendor

cPanel · WebPros

11.136.0.0 before 11.136.0.9; 11.134.0.0 before 11.134.0.25; 11.132.0.0 before 11.132.0.31; 11.130.0.0 before 11.130.0.22; 11.126.0.0 before 11.126.0.58; 11.124.0.0 before 11.124.0.37; +5 more · source: vendor

cPanel (CloudLinux 6, CentOS 6) · WebPros

11.110.0.0 before 11.110.0.116 · source: vendor

Affected product

cPanel

WebPros

All cPanel CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-29203

CVE.org

https://www.cve.org/CVERecord?id=CVE-2026-29203

support.cpanel.net

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