Back to overview

CVE-2026-54428

HIGH
7.5
CVSS 3.1
Description
Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder 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 oversized compressed header blocks before the HTTP/2 SETTINGS acknowledgement causes the configured header list size limit to be applied.

Metadata

CVE ID
CVE-2026-54428
State
PUBLISHED
Assigner
apache
Reserved
2026-06-14 09:39 UTC
Published
2026-07-01 17:03 UTC
Last updated
2026-07-01 18:15 UTC
Primary CWE
CWE-770
CWE-770: Allocation of Resources Without Limits or Throttlin…
Vendor / Product
Apache Software Foundation / Apache HttpComponents Core
Sources
cve.org  ·  NVD

Severity & Metrics

7.5 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
Apache Software Foundation Apache HttpComponents Core — 5.5-alpha ≤ 5.5-beta1, 5.0-alpha ≤ 5.4.2
Weakness (CWE)
CWESourceDescription
CWE-400 cna CWE-400: Uncontrolled Resource Consumption
CWE-770 cna CWE-770: Allocation of Resources Without Limits or Throttling
CVSS scores (1)
ScoreSeverityVersionSourceVector
7.5 HIGH 3.1 adp CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References (1)
Back to overview