TI-2026-23389 Aliases CVE-2026-29856 GHSA-mjxw-242v-v9vm

An issue in the VirtualHost configuration handling/parser component of aaPanel v7.57.0…

HIGH 72CWE-400Published 2026-03-18 · Updated 2026-03-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-400.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00358 29th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:aapanel:aapanel:7.57.0:::::::*	7.57.0	Vulnerable	aaPanel

cpe:2.3:a:aapanel:aapanel:7.57.0:*:*:*:*:*:*:* Versions 7.57.0 Vulnerable ·aaPanel

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-29856
2026-10-03 Alias added: GHSA-mjxw-242v-v9vm

References

Exploit 1

https://github.com/mbiesiad/vulnerability-research/tree/main/CVE-2026-29856

Other 1

https://github.com/aapanel/aapanel

TI-2026-23391 An arbitrary file upload vulnerability in aaPanel v7.57.0 allows attackers to execute… CVSS 3.1CRITICAL 9.8
TI-2026-23390 A lack of path validation in aaPanel v7.57.0 allows attackers to execute a local file… CVSS 3.1HIGH 7.5
TI-2024-28674 AAPanel v7.0.7 was discovered to contain an OS command injection vulnerability. CVSS 3.1MEDIUM 6.5
TI-2020-11758 aaPanel through 6.6.6 allows remote authenticated users to execute arbitrary commands via… CVSS 3.1HIGH 8.8
TI-2021-15650 aaPanel through 6.8.12 allows Cross-Site WebSocket Hijacking (CSWH) involving OS commands… CVSS 3.1HIGH 8.8
TI-2020-11282 aaPanel through 6.6.6 allows remote authenticated users to execute arbitrary commands via… CVSS 3.1HIGH 7.2

See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences