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CVE-2026-54399

Apache HttpComponents Core

Description

Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpComponents Core (5.4.2 and earlier, 5.5-beta1 and earlier) allows an remote attacker to cause a denial of service through memory exhaustion by sending messages with excessive number of headers / excessive header length

CVSS 7.5EPSS 0.565%Risk 0.79
View source
Published
2026-07-01 17:16:36
Affected versions
<=5.4.2, <5.5-beta1
Type
Library
Last modified
2026-07-24 20:04:03
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H