Cyber Resilience

CVE-2026-29203

Medium

Published: 08 May 2026

Published
08 May 2026
Modified
15 May 2026
KEV Added
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Patch
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CVSS Score v4 5.3 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0049 38.7th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-29203 is a medium-severity UNIX Symbolic Link (Symlink) Following (CWE-61) vulnerability in Cpanel (inferred from references). Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 38.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A01:2025 Broken Access Control

EU & UK References

Vulnerability details

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…

more

legacy Nova path under their home directory.

CWE(s)
CWE-61

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1222.002 Linux and Mac Permissions Defense Impairment
Adversaries may modify file or directory permissions/attributes to evade access control lists (ACLs) and access protected files.
attack.mitre.org →
Why these techniques?

Symlink-following chmod with root privileges directly enables local priv esc (T1068) and arbitrary Linux file/dir permission changes (T1222.002).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-33711Shared CWE-61
CVE-2026-22767Shared CWE-61
CVE-2026-24018Shared CWE-61
CVE-2026-21916Shared CWE-61
CVE-2026-39860Shared CWE-61
CVE-2026-34078Shared CWE-61
CVE-2026-7819Shared CWE-61
CVE-2025-55345Shared CWE-61
CVE-2025-33225Shared CWE-61
CVE-2026-6475Shared CWE-61

Affected Assets

Cpanel
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inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References