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..
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | qt6-base | 6.8.2+dfsg-5 | — |
| Debian 14 | qtbase-opensource-src | 5.15.13+dfsg-3 | — |
| Debian 14 | qtbase-opensource-src-gles | No fix yet | — |
| Debian 13 | qt6-base | 6.8.2+dfsg-5 | — |
| Debian 13 | qtbase-opensource-src | 5.15.13+dfsg-3 | — |
| Debian 13 | qtbase-opensource-src-gles | No fix yet | — |
| Debian 12 | qt6-base +1 | No fix yet | — |
| Debian 12 | qtbase-opensource-src | 5.15.8+dfsg-11+deb12u3 | — |
| Debian 11 | qtbase-opensource-src | 5.15.2+dfsg-9+deb11u2 | DLA-4387-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | qtbase-opensource-src | No fix yet | — |
| Ubuntu 22.04 LTS | qtbase-opensource-src | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | qtbase-opensource-src | 5.15.13+dfsg-1ubuntu1+esm1 | — |
| Ubuntu Pro 22.04 LTS | qtbase-opensource-src | 5.15.3+dfsg-2ubuntu0.2+esm3 | — |
| Ubuntu Pro 20.04 LTS | qtbase-opensource-src | 5.12.8+dfsg-0ubuntu2.1+esm3 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | qt5-qtbase +9 | 5.15.9-10.el9_4 | RHSA-2024:4623 |
| RHEL 8 | qt5-qtbase +9 | 5.15.3-8.el8_10 | RHSA-2024:4617 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.2 EUS | qt5-qtbase +9 | 5.15.3-2.el9_2 | RHSA-2024:4638 |
| RHEL 9.0 E4S | qt5-qtbase +8 | 5.15.2-30.el9_0 | RHSA-2024:4645 |
| RHEL 8.8 EUS | qt5-qtbase +9 | 5.15.3-2.el8_8 | RHSA-2024:4639 |
| RHEL 8.6 TUS | qt5-qtbase +8 | 5.15.2-5.el8_6 | RHSA-2024:4644 |
| RHEL 8.6 E4S | qt5-qtbase +8 | 5.15.2-5.el8_6 | RHSA-2024:4644 |
| RHEL 8.6 AUS | qt5-qtbase +8 | 5.15.2-5.el8_6 | RHSA-2024:4644 |
| RHEL 8.4 TUS | qt5-qtbase +8 | 5.12.5-9.el8_4 | RHSA-2024:4621 |
| RHEL 8.4 E4S | qt5-qtbase +8 | 5.12.5-9.el8_4 | RHSA-2024:4621 |
| RHEL 8.4 AUS | qt5-qtbase +8 | 5.12.5-9.el8_4 | RHSA-2024:4621 |
| RHEL 8.2 AUS | qt5-qtbase +8 | 5.12.5-5.el8_2 | RHSA-2024:4646 |
| RHEL 7 ELS | qt5-qtbase +10 | 5.9.7-6.el7_9 | RHSA-2024:4647 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | qt5-qtbase +9 | 5.15.9-10.el9_4 | ALSA-2024:4623 |
| AlmaLinux 8 | qt5-qtbase +9 | 5.15.3-8.el8_10 | ALSA-2024:4617 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | qt5-qtbase | 5.15.9-10.el9_4 | RLSA-2024:4623 |
| Rocky Linux 8 | qt5-qtbase | 5.15.3-8.el8_10 | RLSA-2024:4617 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP6 | libqt5-qtbase | 5.15.12+kde151-150600.3.6.1 | SUSE-SU-2024:2882-1 |
| SLES 15 SP6 | qt6-base +1 | 6.6.3-150600.3.3.1 | SUSE-SU-2024:2875-1 |
| SLES 15 SP5 | libqt5-qtbase | 5.15.8+kde185-150500.4.22.1 | SUSE-SU-2024:2883-1 |
| SLES 15 SP5 | qt6-base | 6.4.2-150500.3.20.2 | SUSE-SU-2024:2873-1 |
| SLES 15 SP4 | libqt5-qtbase | 5.15.2+kde294-150400.6.15.1 | SUSE-SU-2024:2890-1 |
| SLES 15 SP3 | libqt5-qtbase | 5.12.7-150200.4.29.1 | SUSE-SU-2024:2946-1 |
| SLES 15 SP2 | libqt5-qtbase | 5.12.7-150200.4.29.1 | SUSE-SU-2024:2946-1 |
Show 9 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 15 SP4 | libqt5-qtbase | 5.15.2+kde294-150400.6.15.1 | SUSE-SU-2024:2890-1 |
| SLES for SAP 15 SP3 | libqt5-qtbase | 5.12.7-150200.4.29.1 | SUSE-SU-2024:2946-1 |
| SLES for SAP 15 SP2 | libqt5-qtbase | 5.12.7-150200.4.29.1 | SUSE-SU-2024:2946-1 |
| SLE HPC 15 SP4 | libqt5-qtbase | 5.15.2+kde294-150400.6.15.1 | SUSE-SU-2024:2890-1 |
| SLE HPC 15 SP3 | libqt5-qtbase | 5.12.7-150200.4.29.1 | SUSE-SU-2024:2946-1 |
| SLE HPC 15 SP2 | libqt5-qtbase | 5.12.7-150200.4.29.1 | SUSE-SU-2024:2946-1 |
| SUSE Manager Server 4.3 | libqt5-qtbase | 5.15.2+kde294-150400.6.15.1 | SUSE-SU-2024:2890-1 |
| SUSE Manager Proxy 4.3 | libqt5-qtbase | 5.15.2+kde294-150400.6.15.1 | SUSE-SU-2024:2890-1 |
| SUSE Enterprise Storage 7.1 | libqt5-qtbase | 5.12.7-150200.4.29.1 | SUSE-SU-2024:2946-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libqt5-qtbase | 5.15.14+kde143-1.1 | openSUSE-SU-2024:14215-1 |
| openSUSE Tumbleweed | qt6-base | 6.7.2-2.1 | openSUSE-SU-2024:14114-1 |
| openSUSE Leap 15.6 | libqt5-qtbase | 5.15.12+kde151-150600.3.6.1 | SUSE-SU-2024:2882-1 |
| openSUSE Leap 15.6 | qt6-base +1 | 6.6.3-150600.3.3.1 | SUSE-SU-2024:2875-1 |
| openSUSE Leap 15.5 | libqt5-qtbase | 5.15.8+kde185-150500.4.22.1 | SUSE-SU-2024:2883-1 |
| openSUSE Leap 15.5 | qt6-base | 6.4.2-150500.3.20.2 | SUSE-SU-2024:2873-1 |
| openSUSE Leap 15.5 | qt6-base-docs | 6.4.2-150500.3.20.1 | SUSE-SU-2024:2873-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | qt6-qtbase | 6.7.2-r1 | — |
| Alpine v3.23 | qt6-qtbase | 6.7.2-r1 | — |
| Alpine v3.22 | qt6-qtbase | 6.7.2-r1 | — |
| Alpine v3.21 | qt6-qtbase | 6.7.2-r1 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2 | qt5 +3 | 5.15.3-1.amzn2 | ALAS2-2024-2675 |
| Amazon Linux 2 | qt5-qt3d +52 | 5.15.3-1.amzn2.0.1 | ALAS2-2024-2678, ALAS2-2024-2676, ALAS2-2024-2674 |
| Amazon Linux 2 | qt5-qtcanvas3d +1 | 5.12.5-1.amzn2.0.1 | ALAS2-2024-2664 |
| Amazon Linux 2 | qt5-qttools +12 | 5.15.3-4.amzn2.0.1 | ALAS2-2024-2677 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | qt5-qtbase | 5.12.11-13 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | qt5-qtbase +9 | 5.15.9-10.el9_4 | ELSA-2024-4623 |
| Oracle Linux 8 | qt5-qtbase +9 | 5.15.3-8.el8_10 | ELSA-2024-4617 |
| Oracle Linux 7 | qt5-qtbase +10 | 5.9.7-5.0.1.el7_9 | ELSA-2024-4647 |
Advisories 46
- RHSA-2024:4646 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- ALSA-2024:4623 Important: qt5-qtbase security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2024:4617 Important: qt5-qtbase security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2024:4617 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:4647 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:4623 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:4639 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:4638 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2024:4644 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:4645 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- RHSA-2024:4621 Red Hat Security Advisory: qt5-qtbase security update Red Hat Security Advisories (RHSA) · Mar 18, 2026
- WID-SEC-2024-1526 QT: Schwachstelle ermöglicht Offenlegung von Informationen BSI CERT-Bund (WID) · Mar 5, 2026
- RLSA-2024:4617 Important: qt5-qtbase security update Rocky Linux Security Advisories · Feb 4, 2026
- SUSE-SU-2024:2875-1 Security update for qt6-base SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2890-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2946-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2882-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2883-1 Security update for libqt5-qtbase SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2024:2873-1 Security update for qt6-base SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14114-1 libQt6Concurrent6-6.7.2-2.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:14215-1 libQt5Bootstrap-devel-static-32bit-5.15.14+kde143-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- DLA-4387-1 qtbase-opensource-src - security update Debian Security (DSA / DLA) · Nov 29, 2025
- RLSA-2024:4623 Important: qt5-qtbase security update Rocky Linux Security Advisories · Oct 9, 2025
- ALAS2-2024-2667 Important: qt5-qtscript security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2675 Important: qt5 security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2659 Important: qt5-qt3d security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2668 Important: qt5-qtquickcontrols security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2676 Important: qt5-qtdeclarative security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2660 Important: qt5-qtx11extras security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2661 Important: qt5-qtwebsockets security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2669 Important: qt5-qtmultimedia security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2677 Important: qt5-qttools security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2662 Important: qt5-qtwebchannel security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2670 Important: qt5-qtlocation security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2678 Important: qt5-qtbase security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2663 Important: qt5-qtsvg security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2671 Important: qt5-qtimageformats security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2664 Important: qt5-qtcanvas3d security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2672 Important: qt5-qtgraphicaleffects security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2665 Important: qt5-qtserialport security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2673 Important: qt5-qtconnectivity security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2666 Important: qt5-qtsensors security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ALAS2-2024-2674 Important: qt5-qtxmlpatterns security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 31, 2024
- ELSA-2024-4647 Important: qt5-qtbase security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 9, 2024
- ELSA-2024-4623 Important: qt5-qtbase security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 18, 2024
- ELSA-2024-4617 Important: qt5-qtbase security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 18, 2024