CVE-2026-29203 — HIGH (8.8)

Vulnerability 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 Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-61

References

https://support.cpanel.net/hc/en-us/articles/40311543760407-Security-CVE-2026-29

FAQ

What is CVE-2026-29203?

CVE-2026-29203 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 esc...

How severe is CVE-2026-29203?

CVE-2026-29203 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-29203?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.