🛡️ CVE-2024-39936 on Ubuntu — qtbase-opensource-src

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An issue was discovered in HTTP2 in Qt before 5.15.18, 6.x before 6.2.13, 6.3.x through 6.5.x before 6.5.7, and 6.6.x through 6.7.x before 6.7.3. Code to make security-relevant decisions about an established connection may execute too early, because the encrypted() signal has not yet been emitted and processed..

Distribution advisory

This page covers CVE-2024-39936 as tracked by Ubuntu, for the package qtbase-opensource-src. The fix is available in version 5.15.13+dfsg-1ubuntu1+esm1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.

Affected software and timeline

Affected software: qtbase-opensource-src (fixed in 5.15.13+dfsg-1ubuntu1+esm1). Published on 4 July 2024 and last revised on 22 April 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
codereview.qt-project.org (Report)
ubuntu.com (Advisory)

CVE-2024-39936 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2024-07-04
Updated 2026-08-12
Modified 2026-04-22
Fix URL N/A

Affected Packages

Software From version Fixed in
qtbase-opensource-src — 5.15.13+dfsg-1ubuntu1+esm1

Similar Threats

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More UBUNTU CVE 2024 advisories

Part of UBUNTU CVE 2024 in the advisory index.