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Echo: libxml2: security update to 2.12.7+dfsg+really2.9.14-2.1+deb13u3+e3

medium Tenable Self-Hosted Container Security Plugin ID 459781

Description

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

 - A flaw was found in libxml2. A local user or an attacker providing a specially crafted XML catalog can
 trigger a NULL pointer dereference during XML catalog parsing. This occurs when a `nextCatalog` element
 lacks its mandatory `catalog` attribute, leading to the application crashing and causing a Denial of
 Service (DoS). (CVE-2026-76781)

Solution

Update the libxml2 library and its related packages to version 2.12.7+dfsg+really2.9.14-2.1+deb13u3+e3 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-76781

Plugin Details

Severity: Medium

ID: 459781

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.58

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.6

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

CVSS Score Source: CVE-2026-76781

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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: 9/19/2026

Vulnerability Publication Date: 9/17/2026

Reference Information

CVE: CVE-2026-76781