CVE-2026-54399 - Vulnerability Details - OpenCVE

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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable no

Technical Impact partial

No data.

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References

Link	Providers
https://lists.apache.org/thread/zmxh1pl2zohov5ntdh4lt85gfrlchgpy

History

Wed, 01 Jul 2026 18:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 01 Jul 2026 17:15:00 +0000

Type	Values Removed	Values Added
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
Title		Apache HttpComponents Core: Unbounded HTTP Header/Line Length in Default Configuration
Weaknesses		CWE-400
References		https://lists.apache.org/thread/zmxh1pl2zohov5ntdh4lt85gfrlchgpy

MITRE

Status: PUBLISHED

Assigner: apache

Published: 2026-07-01T17:02:21.778Z

Updated: 2026-07-01T17:36:47.358Z

Reserved: 2026-06-13T10:04:54.084Z

Link: CVE-2026-54399

Vulnrichment

Updated: 2026-07-01T17:36:47.358Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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