CVE-2026-54399

HIGH

CVSS v3.1: 7.5

NetworkNo privilegesNo user interactionResource Exhaustion (DoS)Vendor advisory ref

Source data as of:

At a glance

Severity
HIGH
CVSS
7.5 v3.1 · NVD
EPSS
EPSS not provided by FIRST.org for this CVE
CISA KEV
No
Type
Resource Exhaustion (DoS) · NVD CWE
Attack conditions (CVSS vector)
NetworkNo privilegesNo user interaction · Source: NVD Vector
Published
2026-07-01 · Modified: 2026-07-01
References
Jump to references (2)

CVSS / EPSS / KEV

CVSS v3.1 7.5 / 10 HIGH Source: NVD
EPSS — EPSS not provided by FIRST.org for this CVE Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

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

Record details

CVE ID
CVE-2026-54399
CVSS (v3.1)
7.5 (HIGH)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability subscore
3.9
Impact subscore
3.6
CISA KEV
No
Weakness (CWE)
CWE-400
Affected configurations (CPE)
0
Published
2026-07-01
Modified
2026-07-01
Status
Undergoing Analysis

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.

Related records

Other records sharing a factual facet, for cross-reference. A descriptive neighbourhood — ordering does not imply priority and is not a recommendation.

Same weakness type (CWE)

CVE-2026-2891 HIGH CVSS 8.2 CVE-2026-10143 HIGH CVSS 7.5 CVE-2026-40192 HIGH CVSS 7.5 CVE-2026-42154 HIGH CVSS 7.5

Published the same year

CVE-2026-10134 CRITICAL CVSS 10.0 CVE-2026-13782 CRITICAL CVSS 10.0 CVE-2026-46595 CRITICAL CVSS 10.0 CVE-2026-48276 CRITICAL CVSS 10.0
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