CVE-2026-54399

HIGH SEVERITY

CVSS Score & Metrics

Base Score

7.5 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H                                    

Vulnerability 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

Vulnerability Details

Published Date

July 01, 2026

Last Modified

July 01, 2026

CWE ID

CWE-400

Source

NVD

Vendor

Apache Software Foundation

Product

Apache HttpComponents Core

External References

https://lists.apache.org/thread/zmxh1pl2zohov5ntdh4lt85gfrlchgpy
http://www.openwall.com/lists/oss-security/2026/07/01/4

CVE-2026-54399

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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