Description
In TigerVNC before 1.16.2, Image.cxx in x0vncserver allows other users to observe or manipulate the screen contents, or cause an application crash, because of incorrect permissions.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TigerVNC | TigerVNC | < 1.16.2 | 1.16.2 |
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 | tigervnc | 1.15.0+dfsg-2.1 | — |
| Debian 13 | tigervnc | 1.15.0+dfsg-2.1~deb13u1 | — |
| Debian 12 | tigervnc | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | tigervnc | No fix yet | — |
| Ubuntu 26.04 LTS | tigervnc | No fix yet | — |
| Ubuntu 25.10 | tigervnc | No fix yet | — |
| Ubuntu 24.04 LTS | tigervnc | No fix yet | — |
| Ubuntu 22.04 LTS | tigervnc | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | tigervnc | No fix yet | — |
| Ubuntu Pro 20.04 LTS | tigervnc | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9 | tigervnc +6 | 1.15.0-6.el9_7.1 | RHSA-2026:19342, RHSA-2026:10739 |
| RHEL 8 | tigervnc +6 | 1.15.0-9.el8_10 | RHSA-2026:13414 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 9.6 EUS | tigervnc +6 | 1.14.1-10.el9_6 | RHSA-2026:22424 |
| RHEL 9.4 EUS | tigervnc +6 | 1.13.1-8.el9_4.9 | RHSA-2026:20575 |
| RHEL 9.2 E4S | tigervnc +6 | 1.12.0-14.el9_2.14 | RHSA-2026:20576 |
| RHEL 9.0 E4S | tigervnc +6 | 1.11.0-22.el9_0.17 | RHSA-2026:21741 |
| RHEL 8.8 TUS | tigervnc +6 | 1.12.0-15.el8_8.17 | RHSA-2026:23255 |
| RHEL 8.8 E4S | tigervnc +6 | 1.12.0-15.el8_8.17 | RHSA-2026:23255 |
| RHEL 8.6 EUS Long Life | tigervnc +6 | 1.12.0-6.el8_6.17 | RHSA-2026:24341 |
| RHEL 8.6 AUS | tigervnc +6 | 1.12.0-6.el8_6.17 | RHSA-2026:24341 |
| RHEL 8.4 EUS Long Life | tigervnc +6 | 1.11.0-8.el8_4.15 | RHSA-2026:23254 |
| RHEL 8.4 AUS | tigervnc +6 | 1.11.0-8.el8_4.15 | RHSA-2026:23254 |
| RHEL 7 ELS | tigervnc +6 | 1.8.0-36.el7_9.4 | RHSA-2026:22456 |
| RHEL 6 ELS | tigervnc +3 | 1.1.0-25.el6_10.16 | RHSA-2026:23496 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 9 | tigervnc +6 | 1.15.0-6.el9_7.1 | ALSA-2026:19342, ALSA-2026:10739 |
| AlmaLinux 8 | tigervnc +6 | 1.15.0-9.el8_10 | ALSA-2026:13414 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 9 | tigervnc | 1.15.0-6.el9_7.1 | RLSA-2026:19342, RLSA-2026:10739 |
| Rocky Linux 8 | tigervnc | 1.15.0-9.el8_10 | RLSA-2026:13414 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | tigervnc | 1.14.1-150700.4.3.1 | SUSE-SU-2026:1360-1 |
| SLES 15 SP6 | tigervnc | 1.13.1-150600.4.3.1 | SUSE-SU-2026:1252-1 |
| SLES 15 SP5 | tigervnc | 1.12.0-150500.4.3.1 | SUSE-SU-2026:1302-1 |
| SLES 15 SP4 | tigervnc | 1.10.1-150400.7.15.1 | SUSE-SU-2026:1303-1 |
| SLES 12 SP5 | tigervnc | 1.6.0-22.23.1 | SUSE-SU-2026:1301-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | tigervnc | 1.15.0-160000.3.1 | SUSE-SU-2026:21140-1 |
| SLES for SAP 15 SP6 | tigervnc | 1.13.1-150600.4.3.1 | SUSE-SU-2026:1252-1 |
| SLES for SAP 15 SP5 | tigervnc | 1.12.0-150500.4.3.1 | SUSE-SU-2026:1302-1 |
| SLES for SAP 15 SP4 | tigervnc | 1.10.1-150400.7.15.1 | SUSE-SU-2026:1303-1 |
| SLES 16.0 | tigervnc | 1.15.0-160000.3.1 | SUSE-SU-2026:21140-1 |
| SLE HPC 15 SP5 | tigervnc | 1.12.0-150500.4.3.1 | SUSE-SU-2026:1302-1 |
| SLE HPC 15 SP4 | tigervnc | 1.10.1-150400.7.15.1 | SUSE-SU-2026:1303-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tigervnc | 1.16.1-2.1 | openSUSE-SU-2026:10470-1 |
| openSUSE Leap 16.0 | tigervnc | 1.15.0-160000.3.1 | openSUSE-SU-2026:20465-1 |
| openSUSE Leap 15.6 | tigervnc | 1.13.1-150600.4.3.1 | SUSE-SU-2026:1252-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | tigervnc +6 | 1.14.1-3.amzn2023.0.4 | ALAS2023-2026-1537 |
| Amazon Linux 2 | tigervnc +6 | 1.8.0-24.amzn2.0.8 | ALAS2-2026-3231 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | tigervnc +6 | 1.15.0-6.el9_7.1 | ELSA-2026-19342, ELSA-2026-10739 |
| Oracle Linux 8 | tigervnc +6 | 1.15.0-9.el8_10 | ELSA-2026-13414 |
| Oracle Linux 7 | tigervnc +6 | 1.8.0-33.0.11.el7_9 | ELSA-2026-22456 |
Advisories 33
- ALSA-2026:19342 Important: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:10739 Important: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:13414 Important: tigervnc security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:24341 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:23496 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:23254 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:23255 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:22456 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:22424 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:21741 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:20575 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:20576 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:19342 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:13414 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- RHSA-2026:10739 Red Hat Security Advisory: tigervnc security update Red Hat Security Advisories (RHSA) · Oct 3, 2026
- WID-SEC-2026-0888 tigervnc: Schwachstelle ermöglicht Offenlegung von Informationen, Manipulation von Dateien, und Denial of Service BSI CERT-Bund (WID) · Jul 12, 2026
- ELSA-2026-22456 Important: tigervnc security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jul 9, 2026
- ELSA-2026-19342 Important: tigervnc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jun 23, 2026
- RLSA-2026:19342 Important: tigervnc security update Rocky Linux Security Advisories · May 28, 2026
- RLSA-2026:13414 Important: tigervnc security update Rocky Linux Security Advisories · May 7, 2026
- ELSA-2026-13414 Important: tigervnc security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · May 5, 2026
- RLSA-2026:10739 Important: tigervnc security update Rocky Linux Security Advisories · Apr 28, 2026
- ELSA-2026-10739 Important: tigervnc security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Apr 27, 2026
- SUSE-SU-2026:21140-1 Security update for tigervnc SUSE / openSUSE Security Updates · Apr 22, 2026
- SUSE-SU-2026:1360-1 Security update for tigervnc SUSE / openSUSE Security Updates · Apr 16, 2026
- SUSE-SU-2026:1301-1 Security update for tigervnc SUSE / openSUSE Security Updates · Apr 15, 2026
- SUSE-SU-2026:1302-1 Security update for tigervnc SUSE / openSUSE Security Updates · Apr 15, 2026
- SUSE-SU-2026:1303-1 Security update for tigervnc SUSE / openSUSE Security Updates · Apr 15, 2026
- ALAS2-2026-3231 Moderate: tigervnc security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Apr 13, 2026
- ALAS2023-2026-1537 Moderate: tigervnc security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Apr 13, 2026
- SUSE-SU-2026:1252-1 Security update for tigervnc SUSE / openSUSE Security Updates · Apr 11, 2026
- openSUSE-SU-2026:20465-1 Security update for tigervnc SUSE / openSUSE Security Updates · Apr 10, 2026
- openSUSE-SU-2026:10470-1 libXvnc-devel-1.16.1-2.1 on GA media SUSE / openSUSE Security Updates · Apr 1, 2026
References
- https://www.openwall.com/lists/oss-security/2026/03/26/7
- https://github.com/TigerVNC/tigervnc/commit/0b5cab169d847789efa54459a87659d3fd484393
- https://sourceforge.net/projects/tigervnc/files/stable/1.16.2
- https://groups.google.com/g/tigervnc-announce/c/anHL9WLshLI
- https://github.com/TigerVNC/tigervnc/issues/2079