CVE-2025-11230: Denial of service vulnerability in HAProxy mjson library
HAProxy Technologies · HAProxy Community Edition
Vendor fix available · Affected: HAProxy Technologies HAProxy Community Edition · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 55% of scored CVEs
DescriptionCVE.org
Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- HAProxy Technologies · HAProxy Community Editionfrom 2.4.0 before 2.4.30; from 2.6.0 before 2.6.23; from 2.8.0 before 2.8.16; from 3.0.0 before 3.0.12; from 3.1.0 before 3.1.9; from 3.2.0 before 3.2.6
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- HAProxy Technologies
- Published
- November 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-11230 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.