CVE-2026-54399
High · 7.5CVSS
7.5
EPSS
0.8%
Published
Jul 1, 2026
CISA due date
—
The record
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
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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