What is CVE-2026-29856?

CVE-2026-29856 is a high-severity vulnerability in Aapanel, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-03-18.

How severe is CVE-2026-29856?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Aapanel

CVE-2026-29856

An issue in the VirtualHost configuration handling/parser component of aaPanel v7.57.0 allows attackers to cause a Regular Expression Denial of Service (ReDoS) via a crafted input.

Vulnerability class: DoS (Denial of Service)

EPSS: 0.003 (26.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Aapanel — versions 7.57.0
N/a — versions n/a

Weakness classification (CWE)

CWE-400 — Uncontrolled Resource Consumption

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2026-29856?: CVE-2026-29856 is a high-severity vulnerability in Aapanel, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2026-03-18.
How severe is CVE-2026-29856?: High severity. CVSS v3 base score is 7.5 out of 10.