PT-2026-26104 · Aapanel · Aapanel

Michal Biesiada · Published 2026-03-18 · Updated 2026-03-19 · CVE-2026-29856

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions aaPanel version 7.57.0

Description A flaw exists in the VirtualHost configuration handling/parser component that can lead to a Regular Expression Denial of Service (ReDoS) condition. This can be triggered by providing a specially crafted input.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Exploit

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2026-29856

Affected Products

Aapanel

References · 5

• 🔥 https://github.com/mbiesiad/vulnerability-research/tree/main/CVE-2026-29856 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-29856 · Security Note
• https://osv.dev/vulnerability/CVE-2026-29856 · Vendor Advisory
• https://github.com/aapanel/aapanel · Note
• https://twitter.com/CVEnew/status/2034520434700349785 · Twitter Post