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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.005 (41.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
- Aapanel — versions 7.57.0
Weakness classification (CWE)
References
- github.com/aapanel/aapanel (Product)
- github.com/mbiesiad/vulnerability-research/tree/main/CVE-2026-29856 (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.