Echo: qtbase-opensource-src: security update to 5.15.15+dfsg-6+e7

high Tenable Cloud Security Plugin ID 477489

Description

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

- An attacker able to supply a crafted XML document to an application using QXmlStreamReader can cause
disproportionate CPU consumption during parsing, making the application unresponsive (denial of service).
Exploitation requires only that the application parse attacker-influenced XML; no authentication,
privileges, or user interaction beyond ingesting the input are needed. There is no loss of confidentiality
or integrity — no data disclosure, data modification, or code execution — and the impact is contained to
the affected process. (CVE-2026-16762)

Solution

Update the qtbase-opensource-src library and its related packages to version 5.15.15+dfsg-6+e7 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-16762

Plugin Details

Severity: High

ID: 477489

Version: Revision 1.1

Type: Local

Published: 10/26/2026

Updated: 10/26/2026

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.52

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-16762

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

CVSS v4

Risk Factor: High

Base Score: 8.7

Threat Score: 6.6

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/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: 10/25/2026

Vulnerability Publication Date: 10/23/2026

Reference Information

CVE: CVE-2026-16762