CVE-2025-11230

HIGHScheduled

Published:Nov 19, 2025(6 months ago)

Modified:Dec 19, 2025

Remote ExploitNo Auth RequiredNo InteractionLow Complexity

Vulnerability Description

Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.

Attack Characteristics

Network AccessLow ComplexityNo Auth NeededNo User Interaction

🤖

AI analysis not yet available

Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.

No Fix Known

No patch has been released yet. Apply workarounds or mitigations where available.

Affected Software

200

Vendor	Product	Versions	Fixed In
haproxy	aloha_appliance	14.5.0 - 14.5.33	-
haproxy	aloha_appliance	15.5.0 - 15.5.28	-
haproxy	aloha_appliance

Timeline

Published
CVE disclosed publicly
Nov 19, 20256 months ago
Last Modified
Most recent update
Dec 19, 20255 months ago
Indexed to CVEInsight
Added to this platform
Mar 29, 20261 month ago

References

https://www.haproxy.com/blog/october-2025-cve-2025-11230-haproxy-mjson...Vendor Advisory

CVSS Score

v3.1

7.5/ 10.0

HIGH

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

At a Glance

200

Affected Products

References

haproxy / aloha_appliance

CVE-2025-11230

Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

CVE-2025-11230

✦ Vulnerability Description

Attack Characteristics

Affected Software

Timeline

References

CVSS Score

At a Glance

Official Sources

CVSS v3 Vector

Impact Analysis

Vulnerability Description