Description
A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| X.org | libXrender | < 0.9.13 | 0.9.13 |
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 | libxrender | 1:0.9.13-1 | — |
| Debian 13 | libxrender | No fix yet | — |
| Debian 12 | libxrender | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | libxrender | No fix yet | — |
| Ubuntu 26.04 LTS | libxrender | No fix yet | — |
| Ubuntu 24.04 LTS | libxrender | No fix yet | — |
| Ubuntu 22.04 LTS | libxrender | No fix yet | — |
| Ubuntu 20.04 LTS | libxrender | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | libxrender | No fix yet | — |
| Ubuntu 14.04 LTS | libxrender | No fix yet | — |
| Ubuntu Pro 16.04 LTS | libxrender | No fix yet | — |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | libXrender +1 | 0.9.11-8.el10_2.1 | ALSA-2026:91003 |
| AlmaLinux 9 | libXrender +1 | 0.9.10-16.el9_8.2 | ALSA-2026:91057 |
| AlmaLinux 8 | libXrender +1 | 0.9.10-8.el8_10 | ALSA-2026:91267 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | libXrender +1 | 0.9.11-8.el10_2.1 | RLSA-2026:98605, RLSA-2026:91003 |
| Rocky Linux 9 | libXrender | 0.9.10-16.el9_8.2 | RLSA-2026:98500, RLSA-2026:91057 |
| Rocky Linux 9 | libXrender-devel | 0.9.10-17.el9_9.1 | RLSA-2026:98500 |
| Rocky Linux 8 | libXrender | 0.9.10-8.el8_10 | RLSA-2026:91267 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLES 15 SP6 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLES 15 SP5 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLES 15 SP4 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLES 12 SP5 | libXrender | 0.9.8-8.3.1 | SUSE-SU-2026:4395-1 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | libXrender | 0.9.11-160000.3.1 | SUSE-SU-2026:23900-1 |
| SLES for SAP 15 SP6 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLES for SAP 15 SP5 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLES for SAP 15 SP4 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLES 16.0 | libXrender | 0.9.11-160000.3.1 | SUSE-SU-2026:23900-1 |
| SLE Micro 6.2 | libXrender | 0.9.11-160000.3.1 | SUSE-SU-2026:23886-1 |
| SLE Micro 5.5 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLE Micro 5.4 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLE Micro 5.3 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLE HPC 15 SP5 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
| SLE HPC 15 SP4 | libXrender | 0.9.10-150000.3.3.1 | SUSE-SU-2026:4397-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | libXrender | 0.9.12-2.1 | openSUSE-SU-2026:11834-1 |
| openSUSE Leap 16.0 | libXrender | 0.9.11-160000.3.1 | openSUSE-SU-2026:21909-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | libxrender | 0.9.13-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | libXrender +1 | 0.9.11-6.amzn2023.0.2 | ALAS2023-2026-3178 |
| Amazon Linux 2 | libXrender +1 | 0.9.10-1.amzn2.0.3 | ALAS2-2026-3983 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | libXrender | 0.9.13-1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | libXrender +1 | 0.9.11-8.el10_2.1 | ELSA-2026-91003 |
| Oracle Linux 9 | libXrender +1 | 0.9.10-16.el9_8.2 | ELSA-2026-91057 |
| Oracle Linux 8 | libXrender +1 | 0.9.10-8.el8_10 | ELSA-2026-91267 |
Advisories 20
- RLSA-2026:98500 Important: libXrender security update Rocky Linux Security Advisories · Nov 13, 2026
- RLSA-2026:98605 Important: libXrender security update Rocky Linux Security Advisories · Nov 13, 2026
- WID-SEC-2026-4187 Red Hat Enterprise Linux (libXi, libXrender, ansible-collection-redhat-leapp) und Red Hat Build of Apache Camel for Quarkus: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- RLSA-2026:91057 Important: libXrender security update Rocky Linux Security Advisories · Oct 30, 2026
- ALSA-2026:91057 Important: libXrender security update AlmaLinux Security Advisories · Oct 29, 2026
- RLSA-2026:91003 Important: libXrender security update Rocky Linux Security Advisories · Oct 29, 2026
- RLSA-2026:91267 Important: libXrender security update Rocky Linux Security Advisories · Oct 29, 2026
- ALSA-2026:91003 Important: libXrender security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:91267 Important: libXrender security update AlmaLinux Security Advisories · Oct 29, 2026
- ELSA-2026-91057 Important: libXrender security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 29, 2026
- ELSA-2026-91003 Important: libXrender security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Oct 27, 2026
- ELSA-2026-91267 Important: libXrender security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 27, 2026
- ALAS2-2026-3983 Important: libXrender security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Oct 12, 2026
- ALAS2023-2026-3178 Important: libXrender security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 12, 2026
- SUSE-SU-2026:23900-1 Security update for libXrender SUSE / openSUSE Security Updates · Sep 30, 2026
- SUSE-SU-2026:23886-1 Security update for libXrender SUSE / openSUSE Security Updates · Sep 30, 2026
- SUSE-SU-2026:4397-1 Security update for libXrender SUSE / openSUSE Security Updates · Sep 30, 2026
- SUSE-SU-2026:4395-1 Security update for libXrender SUSE / openSUSE Security Updates · Sep 30, 2026
- openSUSE-SU-2026:21909-1 Security update for libXrender SUSE / openSUSE Security Updates · Sep 25, 2026
- openSUSE-SU-2026:11834-1 libXrender-devel-0.9.12-2.1 on GA media SUSE / openSUSE Security Updates · Sep 22, 2026