Detections
Analytics

Echo: org.apache.httpcomponents.core5:httpcore5-h2: security update to 5.4.3

high Tenable Cloud Security Plugin ID 464812

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-54428)

Solution

Update the org.apache.httpcomponents.core5:httpcore5-h2 library and its related packages to version 5.4.3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-54428

Plugin Details

Severity: High

ID: 464812

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.75

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-54428

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 7/1/2026

Reference Information

CVE: CVE-2026-54428