Critical 9.9Published Oct 14, 2026

CVE-2026-108390HestiaCP Low-Privileged User to Root via Config-Field Injection and PATH Hijacking

Updated under an hour ago (2026-10-19 07:30 UTC)

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EPSS puts the chance of exploitation in the next 30 days at 0.68%, higher than 51% of scored CVEs.

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Exploited in the last 30 days

Hestia Control Panel is a lightweight and powerful control panel for the modern web. From version 1.9.7 through 1.10.4, update_object_value() in func/main.sh does not escape single quotes when writing a custom document-root value to a user's web.conf file, allowing a low-privileged authenticated panel user with a web domain to inject an additional PATH field. When the user invokes the ordinary Search feature, the root-privileged v-search-user-object script loads the forged field through parse_object_kv_list_non_eval(), which permits reserved shell-variable names and globally replaces PATH before invoking column without an absolute path. By placing a malicious column executable in the injected search path, the user can execute arbitrary code as root. This residual vulnerability was introduced when version 1.9.7 replaced the raw eval sink addressed by CVE-2026-84984 with parse_object_kv_list_non_eval(), and it is fixed in version 1.10.5.

CVSS: 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-88, CWE-94, CWE-427
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.68% (percentile 51)
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 14, 2026

Affected products

Affected products

hestiacp hestiacp hestiacp:hestiacp (from the name)	from 1.9.7, < 1.10.5	CNA record

References

https://github.com/hestiacp/hestiacp/security/advisories/GHSA-r9q4-pmcm-5qqfx-refsource-confirm
https://github.com/hestiacp/hestiacp/commit/4d86018660f35a1d64a0ae819bc5ee700949a287x-refsource-misc
https://ravindulakmina.pages.dev/advisories/cve-2026-108390-hestiacp-apostrophe-to-rootx-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.