Detections
Analytics

Echo: expat: security update to 2.8.2-1

medium Tenable Cloud Security Plugin ID 460474

Description

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

 - libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers
 in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219
 situation). (CVE-2026-56131)

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-2026-56131

Plugin Details

Severity: Medium

ID: 460474

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 2.8

Percentile: 22.27

CVSS v2

Risk Factor: Low

Base Score: 3.7

Temporal Score: 2.7

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

CVSS Score Source: CVE-2026-56131

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/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: 6/19/2026

Vulnerability Publication Date: 6/19/2026

Reference Information

CVE: CVE-2026-56131

IAVA: 2026-A-0650-S