Detections
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Echo: expat: security update to 2.8.2-1

medium Tenable Self-Hosted Container Security Plugin ID 458782

Description

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

 - libexpat before 2.8.2 has an integer overflow in getAttributeId. (CVE-2026-56405)

Solution

Update the expat library and its related packages to version 2.8.2-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-56405

Plugin Details

Severity: Medium

ID: 458782

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.71

CVSS v2

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 4.4

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

CVSS Score Source: CVE-2026-56405

CVSS v3

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 6

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/22/2026

Vulnerability Publication Date: 6/21/2026

Reference Information

CVE: CVE-2026-56405

IAVA: 2026-A-0650-S