VulnerabilityAnalyzed
CVE-2025-11230
Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.
HIGH 7.5EPSS 0.69%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Inefficient algorithm complexity in mjson in HAProxy allows remote attackers to cause a denial of service via specially crafted JSON requests.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.69% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-407
- Affected
- haproxy/aloha appliance · haproxy/haproxy · haproxy/haproxy enterprise · haproxy/kubernetes ingress controller
- Source
- security@ubuntu.com
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.