This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-54399 →
DEBIAN-CVE-2026-54399
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...
Original description
The description as published by the source.
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
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
httpcomponents-core
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
httpcomponents-core
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
httpcomponents-core
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:12
httpcomponents-core5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
httpcomponents-core5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14
httpcomponents-core5
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.3-1"}]}]
References
- advisory security-tracker.debian.org