Detections
Analytics

Echo: expat: security update to 2.9.0-1+e3

high Tenable Cloud Security Plugin ID 477480

Description

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

 - libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML_ParserReset zeroes the
 direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so
 later documents on the same reset parser fail with XML_ERROR_NO_MEMORY until it is recreated.
 (CVE-2026-113351)

Solution

Update the expat library and its related packages to version 2.9.0-1+e3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-113351

Plugin Details

Severity: High

ID: 477480

Version: Revision 1.1

Type: Local

Published: 10/26/2026

Updated: 10/26/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4

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

CVSS Score Source: CVE-2026-113351

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

CVSS v4

Risk Factor: High

Base Score: 8.2

Threat Score: 4.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/23/2026

Vulnerability Publication Date: 10/20/2026

Reference Information

CVE: CVE-2026-113351