CVE-2023-32762 Affecting qtbase-opensource-src package, versions <5.12.8+dfsg-0ubuntu2.1+esm1


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.88% (55th percentile)

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  • Snyk IDSNYK-UBUNTU2004-QTBASEOPENSOURCESRC-5563412
  • published25 Jul 2025
  • disclosed28 May 2023

Introduced: 28 May 2023

CVE-2023-32762  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 qtbase-opensource-src to version 5.12.8+dfsg-0ubuntu2.1+esm1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qtbase-opensource-src package and not the qtbase-opensource-src package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

An issue was discovered in Qt before 5.15.14, 6.x before 6.2.9, and 6.3.x through 6.5.x before 6.5.1. Qt Network incorrectly parses the strict-transport-security (HSTS) header, allowing unencrypted connections to be established, even when explicitly prohibited by the server. This happens if the case used for this header does not exactly match.

CVSS Base Scores

version 3.1